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Finding the Fourth Proportional to 6,639.52, 9,965.43 and 3,354.92

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Solution

The fourth proportional to 6,639.52, 9,965.43 and 3,354.92 is: 5,035.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.52 : 9,965.43 = 3,354.92 : x
  2. Step 2: Convert to fraction form
    6,639.52/9,965.43 = 3,354.92/x
  3. Step 3: Cross multiply
    6,639.52x = 9,965.43 × 3,354.92
  4. Step 4: Simplify right side
    6,639.52x = 33,433,245.33
  5. Step 5: Solve for x
    x = 33,433,245.33/6,639.52
  6. Step 6: Final answer
    x = 5,035.49

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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.