Question

if my cross is 3 3/8 inches tall and 2 1/2 inches wide how wide should it be if its 7 1/2 inches tall

Answer 1

W2 = (h1/h2) * W1.

W2 = ((3 3/8) / (7 1/2)) * 2 1/2
W2 = ((27/8) / (15/2)) * 5/2
W2=27/8 * 2/15 * 5/2 = 270/240=1 1/8 In.