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Finding the Fourth Proportional to 2,282.52, 3,424.38 and 983.68

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Solution

The fourth proportional to 2,282.52, 3,424.38 and 983.68 is: 1,475.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,282.52 : 3,424.38 = 983.68 : x
  2. Step 2: Convert to fraction form
    2,282.52/3,424.38 = 983.68/x
  3. Step 3: Cross multiply
    2,282.52x = 3,424.38 × 983.68
  4. Step 4: Simplify right side
    2,282.52x = 3,368,494.12
  5. Step 5: Solve for x
    x = 3,368,494.12/2,282.52
  6. Step 6: Final answer
    x = 1,475.78

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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.