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Finding the Fourth Proportional to 1,152.74, 1,727.76 and 502.76

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Solution

The fourth proportional to 1,152.74, 1,727.76 and 502.76 is: 753.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152.74 : 1,727.76 = 502.76 : x
  2. Step 2: Convert to fraction form
    1,152.74/1,727.76 = 502.76/x
  3. Step 3: Cross multiply
    1,152.74x = 1,727.76 × 502.76
  4. Step 4: Simplify right side
    1,152.74x = 868,648.62
  5. Step 5: Solve for x
    x = 868,648.62/1,152.74
  6. Step 6: Final answer
    x = 753.55

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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.