Home / 2,144.20-2,959.62-1,248.15

Finding the Fourth Proportional to 2,144.20, 2,959.62 and 1,248.15

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Solution

The fourth proportional to 2,144.20, 2,959.62 and 1,248.15 is: 1,722.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.20 : 2,959.62 = 1,248.15 : x
  2. Step 2: Convert to fraction form
    2,144.20/2,959.62 = 1,248.15/x
  3. Step 3: Cross multiply
    2,144.20x = 2,959.62 × 1,248.15
  4. Step 4: Simplify right side
    2,144.20x = 3,694,049.70
  5. Step 5: Solve for x
    x = 3,694,049.70/2,144.20
  6. Step 6: Final answer
    x = 1,722.81

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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.