Home / 3,877.40-5,806.38-2,021.96

Finding the Fourth Proportional to 3,877.40, 5,806.38 and 2,021.96

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Solution

The fourth proportional to 3,877.40, 5,806.38 and 2,021.96 is: 3,027.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.40 : 5,806.38 = 2,021.96 : x
  2. Step 2: Convert to fraction form
    3,877.40/5,806.38 = 2,021.96/x
  3. Step 3: Cross multiply
    3,877.40x = 5,806.38 × 2,021.96
  4. Step 4: Simplify right side
    3,877.40x = 11,740,268.10
  5. Step 5: Solve for x
    x = 11,740,268.10/3,877.40
  6. Step 6: Final answer
    x = 3,027.87

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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.