Home / 3,877.82-5,348.68-2,383.78

Finding the Fourth Proportional to 3,877.82, 5,348.68 and 2,383.78

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Solution

The fourth proportional to 3,877.82, 5,348.68 and 2,383.78 is: 3,287.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.82 : 5,348.68 = 2,383.78 : x
  2. Step 2: Convert to fraction form
    3,877.82/5,348.68 = 2,383.78/x
  3. Step 3: Cross multiply
    3,877.82x = 5,348.68 × 2,383.78
  4. Step 4: Simplify right side
    3,877.82x = 12,750,057.08
  5. Step 5: Solve for x
    x = 12,750,057.08/3,877.82
  6. Step 6: Final answer
    x = 3,287.94

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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.