Home / 3,842.74-5,765.99-1,377.75

Finding the Fourth Proportional to 3,842.74, 5,765.99 and 1,377.75

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Solution

The fourth proportional to 3,842.74, 5,765.99 and 1,377.75 is: 2,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.74 : 5,765.99 = 1,377.75 : x
  2. Step 2: Convert to fraction form
    3,842.74/5,765.99 = 1,377.75/x
  3. Step 3: Cross multiply
    3,842.74x = 5,765.99 × 1,377.75
  4. Step 4: Simplify right side
    3,842.74x = 7,944,112.12
  5. Step 5: Solve for x
    x = 7,944,112.12/3,842.74
  6. Step 6: Final answer
    x = 2,067.30

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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.