## EXOEXOEXO one year ago a photograph negative measures 1 7/8 inches by 2 1/2 inches. the printed pictures is to have its longer dimension be 4 inches. how long should the shorter dimension be?

1. zepdrix

Ooo neat problem :) So this is really important with pictures. We don't want the image to come out all skewed and weird looking. So we need to preserve the proportions.

2. zepdrix

|dw:1436829225509:dw|Here is a diagram that illustrates the situation we have.

3. zepdrix

In order to preserve the image, we want these two figures to be similar. Which means the ratio of their sides will be equivalent.

4. zepdrix

$\large\rm \frac{1\frac{7}{8}}{2\frac{1}{2}}=\frac{x}{4}$And then maybe do some cross multiplication or something. Whatever you prefer. What do you think? :) Any confusion? Gotta convert those mixed numbers to improper fractions or decimals.

5. EXOEXOEXO

6. zepdrix

Yayyy! Good job \c:/

7. EXOEXOEXO

thank you