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Finding the Fourth Proportional to 1,344.42, 2,014.90 and 726.59

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Solution

The fourth proportional to 1,344.42, 2,014.90 and 726.59 is: 1,088.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344.42 : 2,014.90 = 726.59 : x
  2. Step 2: Convert to fraction form
    1,344.42/2,014.90 = 726.59/x
  3. Step 3: Cross multiply
    1,344.42x = 2,014.90 × 726.59
  4. Step 4: Simplify right side
    1,344.42x = 1,464,001.15
  5. Step 5: Solve for x
    x = 1,464,001.15/1,344.42
  6. Step 6: Final answer
    x = 1,088.95

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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.