Home / 5,086.29-7,631.19-2,126.31

Finding the Fourth Proportional to 5,086.29, 7,631.19 and 2,126.31

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Solution

The fourth proportional to 5,086.29, 7,631.19 and 2,126.31 is: 3,190.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,086.29 : 7,631.19 = 2,126.31 : x
  2. Step 2: Convert to fraction form
    5,086.29/7,631.19 = 2,126.31/x
  3. Step 3: Cross multiply
    5,086.29x = 7,631.19 × 2,126.31
  4. Step 4: Simplify right side
    5,086.29x = 16,226,275.61
  5. Step 5: Solve for x
    x = 16,226,275.61/5,086.29
  6. Step 6: Final answer
    x = 3,190.20

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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.