Home / 3,760.42-5,189.76-2,167.12

Finding the Fourth Proportional to 3,760.42, 5,189.76 and 2,167.12

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Solution

The fourth proportional to 3,760.42, 5,189.76 and 2,167.12 is: 2,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.42 : 5,189.76 = 2,167.12 : x
  2. Step 2: Convert to fraction form
    3,760.42/5,189.76 = 2,167.12/x
  3. Step 3: Cross multiply
    3,760.42x = 5,189.76 × 2,167.12
  4. Step 4: Simplify right side
    3,760.42x = 11,246,836.13
  5. Step 5: Solve for x
    x = 11,246,836.13/3,760.42
  6. Step 6: Final answer
    x = 2,990.85

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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.