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Finding the Fourth Proportional to 6,640.92, 9,965.33 and 3,354.35

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Solution

The fourth proportional to 6,640.92, 9,965.33 and 3,354.35 is: 5,033.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.92 : 9,965.33 = 3,354.35 : x
  2. Step 2: Convert to fraction form
    6,640.92/9,965.33 = 3,354.35/x
  3. Step 3: Cross multiply
    6,640.92x = 9,965.33 × 3,354.35
  4. Step 4: Simplify right side
    6,640.92x = 33,427,150.67
  5. Step 5: Solve for x
    x = 33,427,150.67/6,640.92
  6. Step 6: Final answer
    x = 5,033.51

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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.