Home / 3,827.76-5,281.20-2,255.28

Finding the Fourth Proportional to 3,827.76, 5,281.20 and 2,255.28

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Solution

The fourth proportional to 3,827.76, 5,281.20 and 2,255.28 is: 3,111.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.76 : 5,281.20 = 2,255.28 : x
  2. Step 2: Convert to fraction form
    3,827.76/5,281.20 = 2,255.28/x
  3. Step 3: Cross multiply
    3,827.76x = 5,281.20 × 2,255.28
  4. Step 4: Simplify right side
    3,827.76x = 11,910,584.74
  5. Step 5: Solve for x
    x = 11,910,584.74/3,827.76
  6. Step 6: Final answer
    x = 3,111.63

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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.