Home / 3,742.38-5,164.31-2,147.92

Finding the Fourth Proportional to 3,742.38, 5,164.31 and 2,147.92

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Solution

The fourth proportional to 3,742.38, 5,164.31 and 2,147.92 is: 2,964.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.38 : 5,164.31 = 2,147.92 : x
  2. Step 2: Convert to fraction form
    3,742.38/5,164.31 = 2,147.92/x
  3. Step 3: Cross multiply
    3,742.38x = 5,164.31 × 2,147.92
  4. Step 4: Simplify right side
    3,742.38x = 11,092,524.74
  5. Step 5: Solve for x
    x = 11,092,524.74/3,742.38
  6. Step 6: Final answer
    x = 2,964.03

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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.