Home / 1,251.36-1,879.20-1,241.28

Finding the Fourth Proportional to 1,251.36, 1,879.20 and 1,241.28

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Solution

The fourth proportional to 1,251.36, 1,879.20 and 1,241.28 is: 1,864.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251.36 : 1,879.20 = 1,241.28 : x
  2. Step 2: Convert to fraction form
    1,251.36/1,879.20 = 1,241.28/x
  3. Step 3: Cross multiply
    1,251.36x = 1,879.20 × 1,241.28
  4. Step 4: Simplify right side
    1,251.36x = 2,332,613.38
  5. Step 5: Solve for x
    x = 2,332,613.38/1,251.36
  6. Step 6: Final answer
    x = 1,864.06

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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.