Home / 3,188.38-4,399.86-1,791.14

Finding the Fourth Proportional to 3,188.38, 4,399.86 and 1,791.14

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Solution

The fourth proportional to 3,188.38, 4,399.86 and 1,791.14 is: 2,471.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.38 : 4,399.86 = 1,791.14 : x
  2. Step 2: Convert to fraction form
    3,188.38/4,399.86 = 1,791.14/x
  3. Step 3: Cross multiply
    3,188.38x = 4,399.86 × 1,791.14
  4. Step 4: Simplify right side
    3,188.38x = 7,880,765.24
  5. Step 5: Solve for x
    x = 7,880,765.24/3,188.38
  6. Step 6: Final answer
    x = 2,471.71

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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.