Home / 3,944.20-5,442.96-2,175.76

Finding the Fourth Proportional to 3,944.20, 5,442.96 and 2,175.76

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Solution

The fourth proportional to 3,944.20, 5,442.96 and 2,175.76 is: 3,002.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,944.20 : 5,442.96 = 2,175.76 : x
  2. Step 2: Convert to fraction form
    3,944.20/5,442.96 = 2,175.76/x
  3. Step 3: Cross multiply
    3,944.20x = 5,442.96 × 2,175.76
  4. Step 4: Simplify right side
    3,944.20x = 11,842,574.65
  5. Step 5: Solve for x
    x = 11,842,574.65/3,944.20
  6. Step 6: Final answer
    x = 3,002.53

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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.