Home / 1,252.38-1,882.62-1,162.20

Finding the Fourth Proportional to 1,252.38, 1,882.62 and 1,162.20

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Solution

The fourth proportional to 1,252.38, 1,882.62 and 1,162.20 is: 1,747.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.38 : 1,882.62 = 1,162.20 : x
  2. Step 2: Convert to fraction form
    1,252.38/1,882.62 = 1,162.20/x
  3. Step 3: Cross multiply
    1,252.38x = 1,882.62 × 1,162.20
  4. Step 4: Simplify right side
    1,252.38x = 2,187,980.96
  5. Step 5: Solve for x
    x = 2,187,980.96/1,252.38
  6. Step 6: Final answer
    x = 1,747.06

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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.