Home / 1,251.68-1,729.04-1,002.69

Finding the Fourth Proportional to 1,251.68, 1,729.04 and 1,002.69

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Solution

The fourth proportional to 1,251.68, 1,729.04 and 1,002.69 is: 1,385.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251.68 : 1,729.04 = 1,002.69 : x
  2. Step 2: Convert to fraction form
    1,251.68/1,729.04 = 1,002.69/x
  3. Step 3: Cross multiply
    1,251.68x = 1,729.04 × 1,002.69
  4. Step 4: Simplify right side
    1,251.68x = 1,733,686.10
  5. Step 5: Solve for x
    x = 1,733,686.10/1,251.68
  6. Step 6: Final answer
    x = 1,385.09

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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.