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Finding the Fourth Proportional to 6,600.20, 9,905.90 and 2,707.40

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Solution

The fourth proportional to 6,600.20, 9,905.90 and 2,707.40 is: 4,063.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,600.20 : 9,905.90 = 2,707.40 : x
  2. Step 2: Convert to fraction form
    6,600.20/9,905.90 = 2,707.40/x
  3. Step 3: Cross multiply
    6,600.20x = 9,905.90 × 2,707.40
  4. Step 4: Simplify right side
    6,600.20x = 26,819,233.66
  5. Step 5: Solve for x
    x = 26,819,233.66/6,600.20
  6. Step 6: Final answer
    x = 4,063.40

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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.