Home / 3,109.53-4,665.92-1,377.75

Finding the Fourth Proportional to 3,109.53, 4,665.92 and 1,377.75

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Solution

The fourth proportional to 3,109.53, 4,665.92 and 1,377.75 is: 2,067.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.53 : 4,665.92 = 1,377.75 : x
  2. Step 2: Convert to fraction form
    3,109.53/4,665.92 = 1,377.75/x
  3. Step 3: Cross multiply
    3,109.53x = 4,665.92 × 1,377.75
  4. Step 4: Simplify right side
    3,109.53x = 6,428,464.39
  5. Step 5: Solve for x
    x = 6,428,464.39/3,109.53
  6. Step 6: Final answer
    x = 2,067.34

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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.