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Finding the Fourth Proportional to 2,402.75, 3,604.64 and 759.43

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Solution

The fourth proportional to 2,402.75, 3,604.64 and 759.43 is: 1,139.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.75 : 3,604.64 = 759.43 : x
  2. Step 2: Convert to fraction form
    2,402.75/3,604.64 = 759.43/x
  3. Step 3: Cross multiply
    2,402.75x = 3,604.64 × 759.43
  4. Step 4: Simplify right side
    2,402.75x = 2,737,471.76
  5. Step 5: Solve for x
    x = 2,737,471.76/2,402.75
  6. Step 6: Final answer
    x = 1,139.31

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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.