Home / 3,844.85-5,768.17-1,247.78

Finding the Fourth Proportional to 3,844.85, 5,768.17 and 1,247.78

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Solution

The fourth proportional to 3,844.85, 5,768.17 and 1,247.78 is: 1,871.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,844.85 : 5,768.17 = 1,247.78 : x
  2. Step 2: Convert to fraction form
    3,844.85/5,768.17 = 1,247.78/x
  3. Step 3: Cross multiply
    3,844.85x = 5,768.17 × 1,247.78
  4. Step 4: Simplify right side
    3,844.85x = 7,197,418.46
  5. Step 5: Solve for x
    x = 7,197,418.46/3,844.85
  6. Step 6: Final answer
    x = 1,871.97

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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.