Home / 2,551.71-3,825.90-1,380.97

Finding the Fourth Proportional to 2,551.71, 3,825.90 and 1,380.97

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Solution

The fourth proportional to 2,551.71, 3,825.90 and 1,380.97 is: 2,070.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.71 : 3,825.90 = 1,380.97 : x
  2. Step 2: Convert to fraction form
    2,551.71/3,825.90 = 1,380.97/x
  3. Step 3: Cross multiply
    2,551.71x = 3,825.90 × 1,380.97
  4. Step 4: Simplify right side
    2,551.71x = 5,283,453.12
  5. Step 5: Solve for x
    x = 5,283,453.12/2,551.71
  6. Step 6: Final answer
    x = 2,070.55

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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.