Home / 2,958.06-4,082.18-1,631.78

Finding the Fourth Proportional to 2,958.06, 4,082.18 and 1,631.78

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Solution

The fourth proportional to 2,958.06, 4,082.18 and 1,631.78 is: 2,251.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958.06 : 4,082.18 = 1,631.78 : x
  2. Step 2: Convert to fraction form
    2,958.06/4,082.18 = 1,631.78/x
  3. Step 3: Cross multiply
    2,958.06x = 4,082.18 × 1,631.78
  4. Step 4: Simplify right side
    2,958.06x = 6,661,212.54
  5. Step 5: Solve for x
    x = 6,661,212.54/2,958.06
  6. Step 6: Final answer
    x = 2,251.88

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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.