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Finding the Fourth Proportional to 3,680.96, 5,481.97 and 3,659.90

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Solution

The fourth proportional to 3,680.96, 5,481.97 and 3,659.90 is: 5,450.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.96 : 5,481.97 = 3,659.90 : x
  2. Step 2: Convert to fraction form
    3,680.96/5,481.97 = 3,659.90/x
  3. Step 3: Cross multiply
    3,680.96x = 5,481.97 × 3,659.90
  4. Step 4: Simplify right side
    3,680.96x = 20,063,462.00
  5. Step 5: Solve for x
    x = 20,063,462.00/3,680.96
  6. Step 6: Final answer
    x = 5,450.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.