Home / 3,944.88-5,442.28-2,766.72

Finding the Fourth Proportional to 3,944.88, 5,442.28 and 2,766.72

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Solution

The fourth proportional to 3,944.88, 5,442.28 and 2,766.72 is: 3,816.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,944.88 : 5,442.28 = 2,766.72 : x
  2. Step 2: Convert to fraction form
    3,944.88/5,442.28 = 2,766.72/x
  3. Step 3: Cross multiply
    3,944.88x = 5,442.28 × 2,766.72
  4. Step 4: Simplify right side
    3,944.88x = 15,057,264.92
  5. Step 5: Solve for x
    x = 15,057,264.92/3,944.88
  6. Step 6: Final answer
    x = 3,816.91

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1.5x scale

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.