Home / 2,025.71-3,037.31-855.11

Finding the Fourth Proportional to 2,025.71, 3,037.31 and 855.11

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Solution

The fourth proportional to 2,025.71, 3,037.31 and 855.11 is: 1,282.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,025.71 : 3,037.31 = 855.11 : x
  2. Step 2: Convert to fraction form
    2,025.71/3,037.31 = 855.11/x
  3. Step 3: Cross multiply
    2,025.71x = 3,037.31 × 855.11
  4. Step 4: Simplify right side
    2,025.71x = 2,597,229.88
  5. Step 5: Solve for x
    x = 2,597,229.88/2,025.71
  6. Step 6: Final answer
    x = 1,282.13

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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.