Equivalences

#1
Hello. I have a question that scores between 1 and 4, and another question scoring between 1 and 5. If I want o find the equivalence of the 1 to 5 question against the 1-4 question what kind of formula do I use? For instance:
for question #2 (Scoring 1 to 5): Overall, rate how your well your expectations were met:5-4-4-5-4-4-5-4-5 (4.4 Average)
for question #1 (Scoring 1 to 4): This session helped me think differently about the way I provide service to our customers:4-4-4-4-4-4-4-4-3 (3.9 Average)

Is there a formula to make question#2 equivalent to question#1?

Thank you in advance