Home / 2,617.52-3,921.66-1,382.21

Finding the Fourth Proportional to 2,617.52, 3,921.66 and 1,382.21

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Solution

The fourth proportional to 2,617.52, 3,921.66 and 1,382.21 is: 2,070.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.52 : 3,921.66 = 1,382.21 : x
  2. Step 2: Convert to fraction form
    2,617.52/3,921.66 = 1,382.21/x
  3. Step 3: Cross multiply
    2,617.52x = 3,921.66 × 1,382.21
  4. Step 4: Simplify right side
    2,617.52x = 5,420,557.95
  5. Step 5: Solve for x
    x = 5,420,557.95/2,617.52
  6. Step 6: Final answer
    x = 2,070.88

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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.