Home / 3,877.18-5,350.52-2,108.80

Finding the Fourth Proportional to 3,877.18, 5,350.52 and 2,108.80

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Solution

The fourth proportional to 3,877.18, 5,350.52 and 2,108.80 is: 2,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.18 : 5,350.52 = 2,108.80 : x
  2. Step 2: Convert to fraction form
    3,877.18/5,350.52 = 2,108.80/x
  3. Step 3: Cross multiply
    3,877.18x = 5,350.52 × 2,108.80
  4. Step 4: Simplify right side
    3,877.18x = 11,283,149.82
  5. Step 5: Solve for x
    x = 11,283,149.82/3,877.18
  6. Step 6: Final answer
    x = 2,910.15

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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.