rectangular pot measuring 4 inches x 5 inches x 3 inches,So,
Volume = 4 x 5 x 3 = 60 inch^3,
and
volume of cylinder = 60 inch^3,
Let,
radius = height = h inches,
So,
pi x h^2 x h = 60, ==> h^3 = 60/pi = 19.0986 inches^3
So,
radius = height = (19.0986)^1/3 = 2.673 inches