Home / 3,877.28-5,350.62-2,108.96

Finding the Fourth Proportional to 3,877.28, 5,350.62 and 2,108.96

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Solution

The fourth proportional to 3,877.28, 5,350.62 and 2,108.96 is: 2,910.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.28 : 5,350.62 = 2,108.96 : x
  2. Step 2: Convert to fraction form
    3,877.28/5,350.62 = 2,108.96/x
  3. Step 3: Cross multiply
    3,877.28x = 5,350.62 × 2,108.96
  4. Step 4: Simplify right side
    3,877.28x = 11,284,243.56
  5. Step 5: Solve for x
    x = 11,284,243.56/3,877.28
  6. Step 6: Final answer
    x = 2,910.35

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1.5x scale

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.