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Finding the Fourth Proportional to 1,727.74, 2,591.23 and 494.88

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Solution

The fourth proportional to 1,727.74, 2,591.23 and 494.88 is: 742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.74 : 2,591.23 = 494.88 : x
  2. Step 2: Convert to fraction form
    1,727.74/2,591.23 = 494.88/x
  3. Step 3: Cross multiply
    1,727.74x = 2,591.23 × 494.88
  4. Step 4: Simplify right side
    1,727.74x = 1,282,337.88
  5. Step 5: Solve for x
    x = 1,282,337.88/1,727.74
  6. Step 6: Final answer
    x = 742.20

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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.