Home / 3,877.20-5,815.26-2,027.70

Finding the Fourth Proportional to 3,877.20, 5,815.26 and 2,027.70

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Solution

The fourth proportional to 3,877.20, 5,815.26 and 2,027.70 is: 3,041.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.20 : 5,815.26 = 2,027.70 : x
  2. Step 2: Convert to fraction form
    3,877.20/5,815.26 = 2,027.70/x
  3. Step 3: Cross multiply
    3,877.20x = 5,815.26 × 2,027.70
  4. Step 4: Simplify right side
    3,877.20x = 11,791,602.70
  5. Step 5: Solve for x
    x = 11,791,602.70/3,877.20
  6. Step 6: Final answer
    x = 3,041.27

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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.