Home / 2,728.38-3,764.82-1,549.20

Finding the Fourth Proportional to 2,728.38, 3,764.82 and 1,549.20

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Solution

The fourth proportional to 2,728.38, 3,764.82 and 1,549.20 is: 2,137.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.38 : 3,764.82 = 1,549.20 : x
  2. Step 2: Convert to fraction form
    2,728.38/3,764.82 = 1,549.20/x
  3. Step 3: Cross multiply
    2,728.38x = 3,764.82 × 1,549.20
  4. Step 4: Simplify right side
    2,728.38x = 5,832,459.14
  5. Step 5: Solve for x
    x = 5,832,459.14/2,728.38
  6. Step 6: Final answer
    x = 2,137.70

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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.