Question

A picture of a family crest is 5.1 inches wide. The family needs a reduced copy for the front page of the family

newsletter. The copy must fit in a space 1.3 inches wide. What scale factor should be used on the copy machine to
adjust the size of the picture of the crest?

Answer 1

0.255 or 25.5%

Explanation:

You want the scale factor that reduces 5.1 inches to 1.3 inches.

Scale factor

The scale factor is the ratio of the image size to the original size:

1.3/5.1 ≈ 0.254902 ≈ 0.255 = 25.5%

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Additional comment

A scale factor of 0.255 would give an image of 1.3005 inches. That's probably close enough. Rounding to the nearest percent, it would be 25%, which would give an image size of 1.275 inches.