As many as three instructors are hired for a martial arts class each week. 4:1 student-to-instructor ratio is considered ideal. Find the maximum number of students at each of these classes.

Cross multiply and solve for x.

4/1 = x/3

To find the maximum number of students at each martial arts class, we need to determine the number of students for each instructor hired.

The ideal student-to-instructor ratio is 4:1, which means that there should be four students for every instructor. So, for each instructor, we have four students.

Given that three instructors are hired for each class, we can multiply the number of instructors by the number of students per instructor:

3 instructors * 4 students/instructor = 12 students

Therefore, the maximum number of students at each martial arts class is 12.