Home / 2,251.14-3,122.46-2,191.20

Finding the Fourth Proportional to 2,251.14, 3,122.46 and 2,191.20

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Solution

The fourth proportional to 2,251.14, 3,122.46 and 2,191.20 is: 3,039.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.14 : 3,122.46 = 2,191.20 : x
  2. Step 2: Convert to fraction form
    2,251.14/3,122.46 = 2,191.20/x
  3. Step 3: Cross multiply
    2,251.14x = 3,122.46 × 2,191.20
  4. Step 4: Simplify right side
    2,251.14x = 6,841,934.35
  5. Step 5: Solve for x
    x = 6,841,934.35/2,251.14
  6. Step 6: Final answer
    x = 3,039.32

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.