Home / 2,749.31-4,120.11-1,517.30

Finding the Fourth Proportional to 2,749.31, 4,120.11 and 1,517.30

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Solution

The fourth proportional to 2,749.31, 4,120.11 and 1,517.30 is: 2,273.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.31 : 4,120.11 = 1,517.30 : x
  2. Step 2: Convert to fraction form
    2,749.31/4,120.11 = 1,517.30/x
  3. Step 3: Cross multiply
    2,749.31x = 4,120.11 × 1,517.30
  4. Step 4: Simplify right side
    2,749.31x = 6,251,442.90
  5. Step 5: Solve for x
    x = 6,251,442.90/2,749.31
  6. Step 6: Final answer
    x = 2,273.82

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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.