Home / 3,426.24-5,140.92-1,863.90

Finding the Fourth Proportional to 3,426.24, 5,140.92 and 1,863.90

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Solution

The fourth proportional to 3,426.24, 5,140.92 and 1,863.90 is: 2,796.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.24 : 5,140.92 = 1,863.90 : x
  2. Step 2: Convert to fraction form
    3,426.24/5,140.92 = 1,863.90/x
  3. Step 3: Cross multiply
    3,426.24x = 5,140.92 × 1,863.90
  4. Step 4: Simplify right side
    3,426.24x = 9,582,167.78
  5. Step 5: Solve for x
    x = 9,582,167.78/3,426.24
  6. Step 6: Final answer
    x = 2,796.70

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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.