Home / 3,979.80-5,972.94-1,514.97

Finding the Fourth Proportional to 3,979.80, 5,972.94 and 1,514.97

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Solution

The fourth proportional to 3,979.80, 5,972.94 and 1,514.97 is: 2,273.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.80 : 5,972.94 = 1,514.97 : x
  2. Step 2: Convert to fraction form
    3,979.80/5,972.94 = 1,514.97/x
  3. Step 3: Cross multiply
    3,979.80x = 5,972.94 × 1,514.97
  4. Step 4: Simplify right side
    3,979.80x = 9,048,824.91
  5. Step 5: Solve for x
    x = 9,048,824.91/3,979.80
  6. Step 6: Final answer
    x = 2,273.69

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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.