Home / 6,891.24-10,320.42-3,766.56

Finding the Fourth Proportional to 6,891.24, 10,320.42 and 3,766.56

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Solution

The fourth proportional to 6,891.24, 10,320.42 and 3,766.56 is: 5,640.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.24 : 10,320.42 = 3,766.56 : x
  2. Step 2: Convert to fraction form
    6,891.24/10,320.42 = 3,766.56/x
  3. Step 3: Cross multiply
    6,891.24x = 10,320.42 × 3,766.56
  4. Step 4: Simplify right side
    6,891.24x = 38,872,481.16
  5. Step 5: Solve for x
    x = 38,872,481.16/6,891.24
  6. Step 6: Final answer
    x = 5,640.85

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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.