Home / 2,687.18-4,030.09-932.04

Finding the Fourth Proportional to 2,687.18, 4,030.09 and 932.04

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Solution

The fourth proportional to 2,687.18, 4,030.09 and 932.04 is: 1,397.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.18 : 4,030.09 = 932.04 : x
  2. Step 2: Convert to fraction form
    2,687.18/4,030.09 = 932.04/x
  3. Step 3: Cross multiply
    2,687.18x = 4,030.09 × 932.04
  4. Step 4: Simplify right side
    2,687.18x = 3,756,202.75
  5. Step 5: Solve for x
    x = 3,756,202.75/2,687.18
  6. Step 6: Final answer
    x = 1,397.83

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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.