Home / 6,639.92-9,960.97-2,691.44

Finding the Fourth Proportional to 6,639.92, 9,960.97 and 2,691.44

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Solution

The fourth proportional to 6,639.92, 9,960.97 and 2,691.44 is: 4,037.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.92 : 9,960.97 = 2,691.44 : x
  2. Step 2: Convert to fraction form
    6,639.92/9,960.97 = 2,691.44/x
  3. Step 3: Cross multiply
    6,639.92x = 9,960.97 × 2,691.44
  4. Step 4: Simplify right side
    6,639.92x = 26,809,353.10
  5. Step 5: Solve for x
    x = 26,809,353.10/6,639.92
  6. Step 6: Final answer
    x = 4,037.60

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1.5x scale

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.