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Finding the Fourth Proportional to 1,334.27, 1,841.28 and 744.91

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Solution

The fourth proportional to 1,334.27, 1,841.28 and 744.91 is: 1,027.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334.27 : 1,841.28 = 744.91 : x
  2. Step 2: Convert to fraction form
    1,334.27/1,841.28 = 744.91/x
  3. Step 3: Cross multiply
    1,334.27x = 1,841.28 × 744.91
  4. Step 4: Simplify right side
    1,334.27x = 1,371,578.68
  5. Step 5: Solve for x
    x = 1,371,578.68/1,334.27
  6. Step 6: Final answer
    x = 1,027.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.