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Finding the Fourth Proportional to 2,398.97, 3,596.90 and 938.27

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Solution

The fourth proportional to 2,398.97, 3,596.90 and 938.27 is: 1,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.97 : 3,596.90 = 938.27 : x
  2. Step 2: Convert to fraction form
    2,398.97/3,596.90 = 938.27/x
  3. Step 3: Cross multiply
    2,398.97x = 3,596.90 × 938.27
  4. Step 4: Simplify right side
    2,398.97x = 3,374,840.69
  5. Step 5: Solve for x
    x = 3,374,840.69/2,398.97
  6. Step 6: Final answer
    x = 1,406.79

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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.