Home / 2,247.62-3,105.70-1,728.14

Finding the Fourth Proportional to 2,247.62, 3,105.70 and 1,728.14

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Solution

The fourth proportional to 2,247.62, 3,105.70 and 1,728.14 is: 2,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247.62 : 3,105.70 = 1,728.14 : x
  2. Step 2: Convert to fraction form
    2,247.62/3,105.70 = 1,728.14/x
  3. Step 3: Cross multiply
    2,247.62x = 3,105.70 × 1,728.14
  4. Step 4: Simplify right side
    2,247.62x = 5,367,084.40
  5. Step 5: Solve for x
    x = 5,367,084.40/2,247.62
  6. Step 6: Final answer
    x = 2,387.90

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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.