Home / 2,180.28-3,270.66-699.63

Finding the Fourth Proportional to 2,180.28, 3,270.66 and 699.63

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Solution

The fourth proportional to 2,180.28, 3,270.66 and 699.63 is: 1,049.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.28 : 3,270.66 = 699.63 : x
  2. Step 2: Convert to fraction form
    2,180.28/3,270.66 = 699.63/x
  3. Step 3: Cross multiply
    2,180.28x = 3,270.66 × 699.63
  4. Step 4: Simplify right side
    2,180.28x = 2,288,251.86
  5. Step 5: Solve for x
    x = 2,288,251.86/2,180.28
  6. Step 6: Final answer
    x = 1,049.52

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1.5x scale

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.