Home / 1,691.57-2,534.45-1,520.37

Finding the Fourth Proportional to 1,691.57, 2,534.45 and 1,520.37

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Solution

The fourth proportional to 1,691.57, 2,534.45 and 1,520.37 is: 2,277.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.57 : 2,534.45 = 1,520.37 : x
  2. Step 2: Convert to fraction form
    1,691.57/2,534.45 = 1,520.37/x
  3. Step 3: Cross multiply
    1,691.57x = 2,534.45 × 1,520.37
  4. Step 4: Simplify right side
    1,691.57x = 3,853,294.14
  5. Step 5: Solve for x
    x = 3,853,294.14/1,691.57
  6. Step 6: Final answer
    x = 2,277.94

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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.