Home / 3,119.64-4,301.79-2,717.85

Finding the Fourth Proportional to 3,119.64, 4,301.79 and 2,717.85

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Solution

The fourth proportional to 3,119.64, 4,301.79 and 2,717.85 is: 3,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.64 : 4,301.79 = 2,717.85 : x
  2. Step 2: Convert to fraction form
    3,119.64/4,301.79 = 2,717.85/x
  3. Step 3: Cross multiply
    3,119.64x = 4,301.79 × 2,717.85
  4. Step 4: Simplify right side
    3,119.64x = 11,691,641.18
  5. Step 5: Solve for x
    x = 11,691,641.18/3,119.64
  6. Step 6: Final answer
    x = 3,747.75

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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.