Home / 5,278.27-7,901.62-3,191.96

Finding the Fourth Proportional to 5,278.27, 7,901.62 and 3,191.96

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Solution

The fourth proportional to 5,278.27, 7,901.62 and 3,191.96 is: 4,778.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.27 : 7,901.62 = 3,191.96 : x
  2. Step 2: Convert to fraction form
    5,278.27/7,901.62 = 3,191.96/x
  3. Step 3: Cross multiply
    5,278.27x = 7,901.62 × 3,191.96
  4. Step 4: Simplify right side
    5,278.27x = 25,221,654.98
  5. Step 5: Solve for x
    x = 25,221,654.98/5,278.27
  6. Step 6: Final answer
    x = 4,778.39

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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.