Home / 5,286.20-7,926.92-1,996.96

Finding the Fourth Proportional to 5,286.20, 7,926.92 and 1,996.96

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Solution

The fourth proportional to 5,286.20, 7,926.92 and 1,996.96 is: 2,994.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.20 : 7,926.92 = 1,996.96 : x
  2. Step 2: Convert to fraction form
    5,286.20/7,926.92 = 1,996.96/x
  3. Step 3: Cross multiply
    5,286.20x = 7,926.92 × 1,996.96
  4. Step 4: Simplify right side
    5,286.20x = 15,829,742.16
  5. Step 5: Solve for x
    x = 15,829,742.16/5,286.20
  6. Step 6: Final answer
    x = 2,994.54

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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.