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Finding the Fourth Proportional to 3,939.54, 5,910.65 and 2,476.98

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Solution

The fourth proportional to 3,939.54, 5,910.65 and 2,476.98 is: 3,716.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.54 : 5,910.65 = 2,476.98 : x
  2. Step 2: Convert to fraction form
    3,939.54/5,910.65 = 2,476.98/x
  3. Step 3: Cross multiply
    3,939.54x = 5,910.65 × 2,476.98
  4. Step 4: Simplify right side
    3,939.54x = 14,640,561.84
  5. Step 5: Solve for x
    x = 14,640,561.84/3,939.54
  6. Step 6: Final answer
    x = 3,716.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.