Home / 2,198.52-3,279.78-2,132.16

Finding the Fourth Proportional to 2,198.52, 3,279.78 and 2,132.16

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Solution

The fourth proportional to 2,198.52, 3,279.78 and 2,132.16 is: 3,180.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.52 : 3,279.78 = 2,132.16 : x
  2. Step 2: Convert to fraction form
    2,198.52/3,279.78 = 2,132.16/x
  3. Step 3: Cross multiply
    2,198.52x = 3,279.78 × 2,132.16
  4. Step 4: Simplify right side
    2,198.52x = 6,993,015.72
  5. Step 5: Solve for x
    x = 6,993,015.72/2,198.52
  6. Step 6: Final answer
    x = 3,180.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.