Home / 6,715.52-10,081.92-3,639.68

Finding the Fourth Proportional to 6,715.52, 10,081.92 and 3,639.68

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Solution

The fourth proportional to 6,715.52, 10,081.92 and 3,639.68 is: 5,464.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,715.52 : 10,081.92 = 3,639.68 : x
  2. Step 2: Convert to fraction form
    6,715.52/10,081.92 = 3,639.68/x
  3. Step 3: Cross multiply
    6,715.52x = 10,081.92 × 3,639.68
  4. Step 4: Simplify right side
    6,715.52x = 36,694,962.59
  5. Step 5: Solve for x
    x = 36,694,962.59/6,715.52
  6. Step 6: Final answer
    x = 5,464.20

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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.