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Finding the Fourth Proportional to 1,958.29, 2,937.36 and 725.95

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Solution

The fourth proportional to 1,958.29, 2,937.36 and 725.95 is: 1,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.29 : 2,937.36 = 725.95 : x
  2. Step 2: Convert to fraction form
    1,958.29/2,937.36 = 725.95/x
  3. Step 3: Cross multiply
    1,958.29x = 2,937.36 × 725.95
  4. Step 4: Simplify right side
    1,958.29x = 2,132,366.36
  5. Step 5: Solve for x
    x = 2,132,366.36/1,958.29
  6. Step 6: Final answer
    x = 1,088.89

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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.