Home / 3,359.91-5,039.85-1,279.43

Finding the Fourth Proportional to 3,359.91, 5,039.85 and 1,279.43

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Solution

The fourth proportional to 3,359.91, 5,039.85 and 1,279.43 is: 1,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,359.91 : 5,039.85 = 1,279.43 : x
  2. Step 2: Convert to fraction form
    3,359.91/5,039.85 = 1,279.43/x
  3. Step 3: Cross multiply
    3,359.91x = 5,039.85 × 1,279.43
  4. Step 4: Simplify right side
    3,359.91x = 6,448,110.09
  5. Step 5: Solve for x
    x = 6,448,110.09/3,359.91
  6. Step 6: Final answer
    x = 1,919.13

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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.