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Finding the Fourth Proportional to 2,402.87, 3,604.37 and 759.38

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Solution

The fourth proportional to 2,402.87, 3,604.37 and 759.38 is: 1,139.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.87 : 3,604.37 = 759.38 : x
  2. Step 2: Convert to fraction form
    2,402.87/3,604.37 = 759.38/x
  3. Step 3: Cross multiply
    2,402.87x = 3,604.37 × 759.38
  4. Step 4: Simplify right side
    2,402.87x = 2,737,064.67
  5. Step 5: Solve for x
    x = 2,737,064.67/2,402.87
  6. Step 6: Final answer
    x = 1,139.08

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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.