Home / 3,827.91-5,281.88-2,255.79

Finding the Fourth Proportional to 3,827.91, 5,281.88 and 2,255.79

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Solution

The fourth proportional to 3,827.91, 5,281.88 and 2,255.79 is: 3,112.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.91 : 5,281.88 = 2,255.79 : x
  2. Step 2: Convert to fraction form
    3,827.91/5,281.88 = 2,255.79/x
  3. Step 3: Cross multiply
    3,827.91x = 5,281.88 × 2,255.79
  4. Step 4: Simplify right side
    3,827.91x = 11,914,812.09
  5. Step 5: Solve for x
    x = 11,914,812.09/3,827.91
  6. Step 6: Final answer
    x = 3,112.62

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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.