Home / 3,938.52-5,906.05-1,165.41

Finding the Fourth Proportional to 3,938.52, 5,906.05 and 1,165.41

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Solution

The fourth proportional to 3,938.52, 5,906.05 and 1,165.41 is: 1,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.52 : 5,906.05 = 1,165.41 : x
  2. Step 2: Convert to fraction form
    3,938.52/5,906.05 = 1,165.41/x
  3. Step 3: Cross multiply
    3,938.52x = 5,906.05 × 1,165.41
  4. Step 4: Simplify right side
    3,938.52x = 6,882,976.17
  5. Step 5: Solve for x
    x = 6,882,976.17/3,938.52
  6. Step 6: Final answer
    x = 1,747.60

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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.