Home / 6,639.76-9,947.49-3,132.66

Finding the Fourth Proportional to 6,639.76, 9,947.49 and 3,132.66

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Solution

The fourth proportional to 6,639.76, 9,947.49 and 3,132.66 is: 4,693.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.76 : 9,947.49 = 3,132.66 : x
  2. Step 2: Convert to fraction form
    6,639.76/9,947.49 = 3,132.66/x
  3. Step 3: Cross multiply
    6,639.76x = 9,947.49 × 3,132.66
  4. Step 4: Simplify right side
    6,639.76x = 31,162,104.02
  5. Step 5: Solve for x
    x = 31,162,104.02/6,639.76
  6. Step 6: Final answer
    x = 4,693.26

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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.