Home / 5,647.91-7,793.33-3,129.40

Finding the Fourth Proportional to 5,647.91, 7,793.33 and 3,129.40

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Solution

The fourth proportional to 5,647.91, 7,793.33 and 3,129.40 is: 4,318.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,647.91 : 7,793.33 = 3,129.40 : x
  2. Step 2: Convert to fraction form
    5,647.91/7,793.33 = 3,129.40/x
  3. Step 3: Cross multiply
    5,647.91x = 7,793.33 × 3,129.40
  4. Step 4: Simplify right side
    5,647.91x = 24,388,446.90
  5. Step 5: Solve for x
    x = 24,388,446.90/5,647.91
  6. Step 6: Final answer
    x = 4,318.14

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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.