Home / 5,176.38-7,142.18-2,937.76

Finding the Fourth Proportional to 5,176.38, 7,142.18 and 2,937.76

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Solution

The fourth proportional to 5,176.38, 7,142.18 and 2,937.76 is: 4,053.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.38 : 7,142.18 = 2,937.76 : x
  2. Step 2: Convert to fraction form
    5,176.38/7,142.18 = 2,937.76/x
  3. Step 3: Cross multiply
    5,176.38x = 7,142.18 × 2,937.76
  4. Step 4: Simplify right side
    5,176.38x = 20,982,010.72
  5. Step 5: Solve for x
    x = 20,982,010.72/5,176.38
  6. Step 6: Final answer
    x = 4,053.41

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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.