The full score of each test is 100 points, and the average score of Xiao Ming's 4 tests is 89 points. In order to get the average score of 94 points (or more) as soon as possible, how many times should he take the test at least.
每次考试满分是100分，小明4次考试的平均成绩是89分，为了使用权平均成绩尽快达到94分(或更多)，他至少再要考多少次．
<result>4</result>