Home / 5,320.74-7,976.47-2,198.80

Finding the Fourth Proportional to 5,320.74, 7,976.47 and 2,198.80

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Solution

The fourth proportional to 5,320.74, 7,976.47 and 2,198.80 is: 3,296.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.74 : 7,976.47 = 2,198.80 : x
  2. Step 2: Convert to fraction form
    5,320.74/7,976.47 = 2,198.80/x
  3. Step 3: Cross multiply
    5,320.74x = 7,976.47 × 2,198.80
  4. Step 4: Simplify right side
    5,320.74x = 17,538,662.24
  5. Step 5: Solve for x
    x = 17,538,662.24/5,320.74
  6. Step 6: Final answer
    x = 3,296.28

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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.