Home / 2,765.43-4,145.31-2,067.21

Finding the Fourth Proportional to 2,765.43, 4,145.31 and 2,067.21

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Solution

The fourth proportional to 2,765.43, 4,145.31 and 2,067.21 is: 3,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.43 : 4,145.31 = 2,067.21 : x
  2. Step 2: Convert to fraction form
    2,765.43/4,145.31 = 2,067.21/x
  3. Step 3: Cross multiply
    2,765.43x = 4,145.31 × 2,067.21
  4. Step 4: Simplify right side
    2,765.43x = 8,569,226.29
  5. Step 5: Solve for x
    x = 8,569,226.29/2,765.43
  6. Step 6: Final answer
    x = 3,098.70

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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.