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Finding the Fourth Proportional to 6,609.70, 9,906.15 and 2,709.70

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Solution

The fourth proportional to 6,609.70, 9,906.15 and 2,709.70 is: 4,061.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.70 : 9,906.15 = 2,709.70 : x
  2. Step 2: Convert to fraction form
    6,609.70/9,906.15 = 2,709.70/x
  3. Step 3: Cross multiply
    6,609.70x = 9,906.15 × 2,709.70
  4. Step 4: Simplify right side
    6,609.70x = 26,842,694.66
  5. Step 5: Solve for x
    x = 26,842,694.66/6,609.70
  6. Step 6: Final answer
    x = 4,061.11

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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.