Home / 2,747.28-3,790.67-1,739.29

Finding the Fourth Proportional to 2,747.28, 3,790.67 and 1,739.29

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Solution

The fourth proportional to 2,747.28, 3,790.67 and 1,739.29 is: 2,399.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.28 : 3,790.67 = 1,739.29 : x
  2. Step 2: Convert to fraction form
    2,747.28/3,790.67 = 1,739.29/x
  3. Step 3: Cross multiply
    2,747.28x = 3,790.67 × 1,739.29
  4. Step 4: Simplify right side
    2,747.28x = 6,593,074.42
  5. Step 5: Solve for x
    x = 6,593,074.42/2,747.28
  6. Step 6: Final answer
    x = 2,399.86

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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.