Home / 3,843.80-5,764.20-1,651

Finding the Fourth Proportional to 3,843.80, 5,764.20 and 1,651

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Solution

The fourth proportional to 3,843.80, 5,764.20 and 1,651 is: 2,475.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,843.80 : 5,764.20 = 1,651 : x
  2. Step 2: Convert to fraction form
    3,843.80/5,764.20 = 1,651/x
  3. Step 3: Cross multiply
    3,843.80x = 5,764.20 × 1,651
  4. Step 4: Simplify right side
    3,843.80x = 9,516,694.20
  5. Step 5: Solve for x
    x = 9,516,694.20/3,843.80
  6. Step 6: Final answer
    x = 2,475.86

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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.