Home / 3,983.72-5,479.26-3,196.04

Finding the Fourth Proportional to 3,983.72, 5,479.26 and 3,196.04

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Solution

The fourth proportional to 3,983.72, 5,479.26 and 3,196.04 is: 4,395.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.72 : 5,479.26 = 3,196.04 : x
  2. Step 2: Convert to fraction form
    3,983.72/5,479.26 = 3,196.04/x
  3. Step 3: Cross multiply
    3,983.72x = 5,479.26 × 3,196.04
  4. Step 4: Simplify right side
    3,983.72x = 17,511,934.13
  5. Step 5: Solve for x
    x = 17,511,934.13/3,983.72
  6. Step 6: Final answer
    x = 4,395.87

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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.