Home / 3,751.31-5,178.03-2,179.10

Finding the Fourth Proportional to 3,751.31, 5,178.03 and 2,179.10

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Solution

The fourth proportional to 3,751.31, 5,178.03 and 2,179.10 is: 3,007.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.31 : 5,178.03 = 2,179.10 : x
  2. Step 2: Convert to fraction form
    3,751.31/5,178.03 = 2,179.10/x
  3. Step 3: Cross multiply
    3,751.31x = 5,178.03 × 2,179.10
  4. Step 4: Simplify right side
    3,751.31x = 11,283,449.95
  5. Step 5: Solve for x
    x = 11,283,449.95/3,751.31
  6. Step 6: Final answer
    x = 3,007.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.