SOLUTION: What is log 5.4 4x as a ratio of common logs

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Question 394711: What is log 5.4 4x as a ratio of common logs
Answer by jsmallt9(3758) About Me  (Show Source):
You can put this solution on YOUR website!
log%285.4%2C+%284x%29%29
A ratio of common logs? A ratio of logs should bring to mind the base conversion formula: log%28a%2C+%28p%29%29+=+log%28b%2C+%28p%29%29%2Flog%28b%2C+%28a%29%29. So all we have to do is use this formula to convert the base 5.4 log into a ratio of common (i.e. base 10) logs:
log%285.4%2C+%284x%29%29+=+log%28%284x%29%29%2Flog%28%285.4%29%29