Home / 2,728.20-4,092.12-1,168.20

Finding the Fourth Proportional to 2,728.20, 4,092.12 and 1,168.20

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Solution

The fourth proportional to 2,728.20, 4,092.12 and 1,168.20 is: 1,752.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.20 : 4,092.12 = 1,168.20 : x
  2. Step 2: Convert to fraction form
    2,728.20/4,092.12 = 1,168.20/x
  3. Step 3: Cross multiply
    2,728.20x = 4,092.12 × 1,168.20
  4. Step 4: Simplify right side
    2,728.20x = 4,780,414.58
  5. Step 5: Solve for x
    x = 4,780,414.58/2,728.20
  6. Step 6: Final answer
    x = 1,752.22

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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.