Home / 5,174.47-7,137.58-3,156.92

Finding the Fourth Proportional to 5,174.47, 7,137.58 and 3,156.92

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Solution

The fourth proportional to 5,174.47, 7,137.58 and 3,156.92 is: 4,354.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.47 : 7,137.58 = 3,156.92 : x
  2. Step 2: Convert to fraction form
    5,174.47/7,137.58 = 3,156.92/x
  3. Step 3: Cross multiply
    5,174.47x = 7,137.58 × 3,156.92
  4. Step 4: Simplify right side
    5,174.47x = 22,532,789.43
  5. Step 5: Solve for x
    x = 22,532,789.43/5,174.47
  6. Step 6: Final answer
    x = 4,354.61

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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.