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Finding the Fourth Proportional to 1,344.13, 1,854.96 and 754.66

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Solution

The fourth proportional to 1,344.13, 1,854.96 and 754.66 is: 1,041.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344.13 : 1,854.96 = 754.66 : x
  2. Step 2: Convert to fraction form
    1,344.13/1,854.96 = 754.66/x
  3. Step 3: Cross multiply
    1,344.13x = 1,854.96 × 754.66
  4. Step 4: Simplify right side
    1,344.13x = 1,399,864.11
  5. Step 5: Solve for x
    x = 1,399,864.11/1,344.13
  6. Step 6: Final answer
    x = 1,041.46

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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.