Home / 2,741.28-4,111.92-2,190.87

Finding the Fourth Proportional to 2,741.28, 4,111.92 and 2,190.87

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Solution

The fourth proportional to 2,741.28, 4,111.92 and 2,190.87 is: 3,286.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,741.28 : 4,111.92 = 2,190.87 : x
  2. Step 2: Convert to fraction form
    2,741.28/4,111.92 = 2,190.87/x
  3. Step 3: Cross multiply
    2,741.28x = 4,111.92 × 2,190.87
  4. Step 4: Simplify right side
    2,741.28x = 9,008,682.17
  5. Step 5: Solve for x
    x = 9,008,682.17/2,741.28
  6. Step 6: Final answer
    x = 3,286.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.