Home / 3,877.11-5,350.42-2,108.71

Finding the Fourth Proportional to 3,877.11, 5,350.42 and 2,108.71

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Solution

The fourth proportional to 3,877.11, 5,350.42 and 2,108.71 is: 2,910.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.11 : 5,350.42 = 2,108.71 : x
  2. Step 2: Convert to fraction form
    3,877.11/5,350.42 = 2,108.71/x
  3. Step 3: Cross multiply
    3,877.11x = 5,350.42 × 2,108.71
  4. Step 4: Simplify right side
    3,877.11x = 11,282,484.16
  5. Step 5: Solve for x
    x = 11,282,484.16/3,877.11
  6. Step 6: Final answer
    x = 2,910.02

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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.