Home / 3,814.80-5,252.76-2,871.96

Finding the Fourth Proportional to 3,814.80, 5,252.76 and 2,871.96

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Solution

The fourth proportional to 3,814.80, 5,252.76 and 2,871.96 is: 3,954.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,814.80 : 5,252.76 = 2,871.96 : x
  2. Step 2: Convert to fraction form
    3,814.80/5,252.76 = 2,871.96/x
  3. Step 3: Cross multiply
    3,814.80x = 5,252.76 × 2,871.96
  4. Step 4: Simplify right side
    3,814.80x = 15,085,716.61
  5. Step 5: Solve for x
    x = 15,085,716.61/3,814.80
  6. Step 6: Final answer
    x = 3,954.52

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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.