Home / 2,461.11-3,691.29-999.90

Finding the Fourth Proportional to 2,461.11, 3,691.29 and 999.90

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Solution

The fourth proportional to 2,461.11, 3,691.29 and 999.90 is: 1,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,461.11 : 3,691.29 = 999.90 : x
  2. Step 2: Convert to fraction form
    2,461.11/3,691.29 = 999.90/x
  3. Step 3: Cross multiply
    2,461.11x = 3,691.29 × 999.90
  4. Step 4: Simplify right side
    2,461.11x = 3,690,920.87
  5. Step 5: Solve for x
    x = 3,690,920.87/2,461.11
  6. Step 6: Final answer
    x = 1,499.70

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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.