Home / 3,818.78-5,272.49-2,385.33

Finding the Fourth Proportional to 3,818.78, 5,272.49 and 2,385.33

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Solution

The fourth proportional to 3,818.78, 5,272.49 and 2,385.33 is: 3,293.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.78 : 5,272.49 = 2,385.33 : x
  2. Step 2: Convert to fraction form
    3,818.78/5,272.49 = 2,385.33/x
  3. Step 3: Cross multiply
    3,818.78x = 5,272.49 × 2,385.33
  4. Step 4: Simplify right side
    3,818.78x = 12,576,625.59
  5. Step 5: Solve for x
    x = 12,576,625.59/3,818.78
  6. Step 6: Final answer
    x = 3,293.36

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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.