I need the answer in Python3 (pyCharm Edu). (using if statement)

Could you please help me with an answer to this question in a simple way for the beginner? This is a beginner level class so can you please help me. The code must have beginner level implementation. Can you also please explain what things do. Thank you!

Write a program that checks whether a triangle is perfect. A triangle is perfect if its shortest side length is 3x, its middle side length is 4x and its longest side length is 5x, where x is the same integer. The program should prompt for the side lengths in the order: shortest, middle, and longest. It should use the guess and check approach