AMO 2021 — Secondary 1 (Grade 7) Question 4

Question 4

Sasha’s image is $1\frac12$ inches wide and $2\frac14$ inches tall. She enlarges it proportionally to fit exactly into a screen box 4 inches wide. How tall must the box be, in inches?

Question illustration

$\frac9{32}$
$\frac{27}{32}$
$6$
$4\frac34$
$2\frac12$