Alihan's transcript shows the following academic record for four semesters of part-time college studies. Calculate his cumulative GPA at the end of his fourth semester.

Cumulative GPA

The weighted mean value of all grade points earned by a student over the course of their academic career, including all courses taken.

Part-Time College

Refers to attending college courses or pursuing a degree with a reduced course load, allowing for less than full-time enrollment.

Academic Record

The formal documentation of a student's educational performance and achievements.