Home / 2,198.30-3,028.14-1,976.90

Finding the Fourth Proportional to 2,198.30, 3,028.14 and 1,976.90

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Solution

The fourth proportional to 2,198.30, 3,028.14 and 1,976.90 is: 2,723.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.30 : 3,028.14 = 1,976.90 : x
  2. Step 2: Convert to fraction form
    2,198.30/3,028.14 = 1,976.90/x
  3. Step 3: Cross multiply
    2,198.30x = 3,028.14 × 1,976.90
  4. Step 4: Simplify right side
    2,198.30x = 5,986,329.97
  5. Step 5: Solve for x
    x = 5,986,329.97/2,198.30
  6. Step 6: Final answer
    x = 2,723.16

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1.5x scale

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.