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Finding the Fourth Proportional to 2,399.52, 3,599.28 and 668.14

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Solution

The fourth proportional to 2,399.52, 3,599.28 and 668.14 is: 1,002.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399.52 : 3,599.28 = 668.14 : x
  2. Step 2: Convert to fraction form
    2,399.52/3,599.28 = 668.14/x
  3. Step 3: Cross multiply
    2,399.52x = 3,599.28 × 668.14
  4. Step 4: Simplify right side
    2,399.52x = 2,404,822.94
  5. Step 5: Solve for x
    x = 2,404,822.94/2,399.52
  6. Step 6: Final answer
    x = 1,002.21

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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.