Home / 7,354.91-10,149.88-3,997.78

Finding the Fourth Proportional to 7,354.91, 10,149.88 and 3,997.78

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Solution

The fourth proportional to 7,354.91, 10,149.88 and 3,997.78 is: 5,516.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,354.91 : 10,149.88 = 3,997.78 : x
  2. Step 2: Convert to fraction form
    7,354.91/10,149.88 = 3,997.78/x
  3. Step 3: Cross multiply
    7,354.91x = 10,149.88 × 3,997.78
  4. Step 4: Simplify right side
    7,354.91x = 40,576,951.90
  5. Step 5: Solve for x
    x = 40,576,951.90/7,354.91
  6. Step 6: Final answer
    x = 5,516.99

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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.