Home / 2,288.88-3,431.26-827.70

Finding the Fourth Proportional to 2,288.88, 3,431.26 and 827.70

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Solution

The fourth proportional to 2,288.88, 3,431.26 and 827.70 is: 1,240.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,288.88 : 3,431.26 = 827.70 : x
  2. Step 2: Convert to fraction form
    2,288.88/3,431.26 = 827.70/x
  3. Step 3: Cross multiply
    2,288.88x = 3,431.26 × 827.70
  4. Step 4: Simplify right side
    2,288.88x = 2,840,053.90
  5. Step 5: Solve for x
    x = 2,840,053.90/2,288.88
  6. Step 6: Final answer
    x = 1,240.81

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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.