It is not possible for anyone to tell if these weights are correct. At least that is what I thin you are asking about. The most important thing to remember about max strength training is that the weight needs to be heavy. 85-90% of your 1 rep maximum. In the final sets (3&4) you you should barely be able to complete the reps. That will give the best max strength stimulus.
If you are doing this you are doing it correctly.