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Finding the Fourth Proportional to 1,583, 2,375.06 and 1,149.40

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Solution

The fourth proportional to 1,583, 2,375.06 and 1,149.40 is: 1,724.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583 : 2,375.06 = 1,149.40 : x
  2. Step 2: Convert to fraction form
    1,583/2,375.06 = 1,149.40/x
  3. Step 3: Cross multiply
    1,583x = 2,375.06 × 1,149.40
  4. Step 4: Simplify right side
    1,583x = 2,729,893.96
  5. Step 5: Solve for x
    x = 2,729,893.96/1,583
  6. Step 6: Final answer
    x = 1,724.51

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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.