Home / 5,125.17-7,687.83-1,615.11

Finding the Fourth Proportional to 5,125.17, 7,687.83 and 1,615.11

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Solution

The fourth proportional to 5,125.17, 7,687.83 and 1,615.11 is: 2,422.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.17 : 7,687.83 = 1,615.11 : x
  2. Step 2: Convert to fraction form
    5,125.17/7,687.83 = 1,615.11/x
  3. Step 3: Cross multiply
    5,125.17x = 7,687.83 × 1,615.11
  4. Step 4: Simplify right side
    5,125.17x = 12,416,691.11
  5. Step 5: Solve for x
    x = 12,416,691.11/5,125.17
  6. Step 6: Final answer
    x = 2,422.69

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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.