Home / 3,877.38-5,815.80-2,228.76

Finding the Fourth Proportional to 3,877.38, 5,815.80 and 2,228.76

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Solution

The fourth proportional to 3,877.38, 5,815.80 and 2,228.76 is: 3,342.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.38 : 5,815.80 = 2,228.76 : x
  2. Step 2: Convert to fraction form
    3,877.38/5,815.80 = 2,228.76/x
  3. Step 3: Cross multiply
    3,877.38x = 5,815.80 × 2,228.76
  4. Step 4: Simplify right side
    3,877.38x = 12,962,022.41
  5. Step 5: Solve for x
    x = 12,962,022.41/3,877.38
  6. Step 6: Final answer
    x = 3,342.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.