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Finding the Fourth Proportional to 2,405.80, 3,600.12 and 1,481.56

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Solution

The fourth proportional to 2,405.80, 3,600.12 and 1,481.56 is: 2,217.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.80 : 3,600.12 = 1,481.56 : x
  2. Step 2: Convert to fraction form
    2,405.80/3,600.12 = 1,481.56/x
  3. Step 3: Cross multiply
    2,405.80x = 3,600.12 × 1,481.56
  4. Step 4: Simplify right side
    2,405.80x = 5,333,793.79
  5. Step 5: Solve for x
    x = 5,333,793.79/2,405.80
  6. Step 6: Final answer
    x = 2,217.06

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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.