Home / 3,760.92-5,190.66-2,189.88

Finding the Fourth Proportional to 3,760.92, 5,190.66 and 2,189.88

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Solution

The fourth proportional to 3,760.92, 5,190.66 and 2,189.88 is: 3,022.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.92 : 5,190.66 = 2,189.88 : x
  2. Step 2: Convert to fraction form
    3,760.92/5,190.66 = 2,189.88/x
  3. Step 3: Cross multiply
    3,760.92x = 5,190.66 × 2,189.88
  4. Step 4: Simplify right side
    3,760.92x = 11,366,922.52
  5. Step 5: Solve for x
    x = 11,366,922.52/3,760.92
  6. Step 6: Final answer
    x = 3,022.38

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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.