Your friend has a poster printed from a photograph that is 4 inches wide by 6 inches long. The poster is 22 inches wide and is proportional to the photograph. What is the length of the poster?

When two figures are similar, the ratios of the lengths of their corresponding sides are equal. To determine if the triangles below are similar, compare their corresponding sides. We calculate as follows:

6 / 4 = x / 22

x = 33

Therefore, the length of the poster is 33 inches. Hope this answers the question. Have a nice day.