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Finding the Fourth Proportional to 1,732.82, 2,600.57 and 1,209.43

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Solution

The fourth proportional to 1,732.82, 2,600.57 and 1,209.43 is: 1,815.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,732.82 : 2,600.57 = 1,209.43 : x
  2. Step 2: Convert to fraction form
    1,732.82/2,600.57 = 1,209.43/x
  3. Step 3: Cross multiply
    1,732.82x = 2,600.57 × 1,209.43
  4. Step 4: Simplify right side
    1,732.82x = 3,145,203.90
  5. Step 5: Solve for x
    x = 3,145,203.90/1,732.82
  6. Step 6: Final answer
    x = 1,815.08

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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.