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Finding the Fourth Proportional to 3,609.64, 5,414.49 and 1,012.54

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Solution

The fourth proportional to 3,609.64, 5,414.49 and 1,012.54 is: 1,518.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.64 : 5,414.49 = 1,012.54 : x
  2. Step 2: Convert to fraction form
    3,609.64/5,414.49 = 1,012.54/x
  3. Step 3: Cross multiply
    3,609.64x = 5,414.49 × 1,012.54
  4. Step 4: Simplify right side
    3,609.64x = 5,482,387.70
  5. Step 5: Solve for x
    x = 5,482,387.70/3,609.64
  6. Step 6: Final answer
    x = 1,518.82

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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.