Home / 3,765.08-5,195.31-2,171.79

Finding the Fourth Proportional to 3,765.08, 5,195.31 and 2,171.79

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Solution

The fourth proportional to 3,765.08, 5,195.31 and 2,171.79 is: 2,996.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.08 : 5,195.31 = 2,171.79 : x
  2. Step 2: Convert to fraction form
    3,765.08/5,195.31 = 2,171.79/x
  3. Step 3: Cross multiply
    3,765.08x = 5,195.31 × 2,171.79
  4. Step 4: Simplify right side
    3,765.08x = 11,283,122.30
  5. Step 5: Solve for x
    x = 11,283,122.30/3,765.08
  6. Step 6: Final answer
    x = 2,996.78

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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.