Home / 5,317.30-7,979.19-2,198.80

Finding the Fourth Proportional to 5,317.30, 7,979.19 and 2,198.80

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Solution

The fourth proportional to 5,317.30, 7,979.19 and 2,198.80 is: 3,299.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.30 : 7,979.19 = 2,198.80 : x
  2. Step 2: Convert to fraction form
    5,317.30/7,979.19 = 2,198.80/x
  3. Step 3: Cross multiply
    5,317.30x = 7,979.19 × 2,198.80
  4. Step 4: Simplify right side
    5,317.30x = 17,544,642.97
  5. Step 5: Solve for x
    x = 17,544,642.97/5,317.30
  6. Step 6: Final answer
    x = 3,299.54

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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.