Keep Proportions when Enlarging a Design - Practice 1

5 questions0m 0s

Learn the skill

Multiply every length by the same factor to keep proportions in a flat design. Enlarging just width would stretch the design differently. The examples use ideal measured plans, not a rule against expressive distortion.

Worked example

A 3 cm by 5 cm plan enlarged by factor 2 becomes 6 cm by 10 cm.

A portrait rectangle with ratio two to three is enlarged to four to six. Both width and height double, preserving proportion. Labeled values define the plan; screen resizing changes physical ruler measurements.

Question 1 Plan 1 is 2 cm wide and 4 cm high. Every length is scaled by 2. What is the new height in cm? Answer

Question 2 Plan 2 is 3 cm wide and 5 cm high. Every length is scaled by 3. What is the new height in cm? Answer

Question 3 Plan 3 is 4 cm wide and 6 cm high. Every length is scaled by 4. What is the new height in cm? Answer

Question 4 Plan 4 is 5 cm wide and 7 cm high. Every length is scaled by 2. What is the new height in cm? Answer

Question 5 Plan 5 is 6 cm wide and 8 cm high. Every length is scaled by 3. What is the new height in cm? Answer

Make It Your Own

Optional theme: a surprising delivery. Make a small design on a grid and enlarge it using one scale factor. Compare two corresponding lengths, then explain any deliberate distortion in a separate variation. You may draw, write or tell your idea. Use invented characters and places; no personal information or upload is needed. This activity is not scored.

Reflect on your choices

Use the same factor for both dimensions of the proportional version.
Explain one intentional choice and one possible alternative.
There is no required style or single correct creative response.

Draft notes (not saved or graded)