Home / 3,896.27-5,371.75-2,884.78

Finding the Fourth Proportional to 3,896.27, 5,371.75 and 2,884.78

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Solution

The fourth proportional to 3,896.27, 5,371.75 and 2,884.78 is: 3,977.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.27 : 5,371.75 = 2,884.78 : x
  2. Step 2: Convert to fraction form
    3,896.27/5,371.75 = 2,884.78/x
  3. Step 3: Cross multiply
    3,896.27x = 5,371.75 × 2,884.78
  4. Step 4: Simplify right side
    3,896.27x = 15,496,309.75
  5. Step 5: Solve for x
    x = 15,496,309.75/3,896.27
  6. Step 6: Final answer
    x = 3,977.22

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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.