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Finding the Fourth Proportional to 2,391.97, 3,588.12 and 1,003.91

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Solution

The fourth proportional to 2,391.97, 3,588.12 and 1,003.91 is: 1,505.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.97 : 3,588.12 = 1,003.91 : x
  2. Step 2: Convert to fraction form
    2,391.97/3,588.12 = 1,003.91/x
  3. Step 3: Cross multiply
    2,391.97x = 3,588.12 × 1,003.91
  4. Step 4: Simplify right side
    2,391.97x = 3,602,149.55
  5. Step 5: Solve for x
    x = 3,602,149.55/2,391.97
  6. Step 6: Final answer
    x = 1,505.93

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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.