Home / 3,732.35-5,156.46-3,178.71

Finding the Fourth Proportional to 3,732.35, 5,156.46 and 3,178.71

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Solution

The fourth proportional to 3,732.35, 5,156.46 and 3,178.71 is: 4,391.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,732.35 : 5,156.46 = 3,178.71 : x
  2. Step 2: Convert to fraction form
    3,732.35/5,156.46 = 3,178.71/x
  3. Step 3: Cross multiply
    3,732.35x = 5,156.46 × 3,178.71
  4. Step 4: Simplify right side
    3,732.35x = 16,390,890.97
  5. Step 5: Solve for x
    x = 16,390,890.97/3,732.35
  6. Step 6: Final answer
    x = 4,391.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.