Home / 7,771.27-11,654.38-2,575.75

Finding the Fourth Proportional to 7,771.27, 11,654.38 and 2,575.75

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Solution

The fourth proportional to 7,771.27, 11,654.38 and 2,575.75 is: 3,862.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.27 : 11,654.38 = 2,575.75 : x
  2. Step 2: Convert to fraction form
    7,771.27/11,654.38 = 2,575.75/x
  3. Step 3: Cross multiply
    7,771.27x = 11,654.38 × 2,575.75
  4. Step 4: Simplify right side
    7,771.27x = 30,018,769.29
  5. Step 5: Solve for x
    x = 30,018,769.29/7,771.27
  6. Step 6: Final answer
    x = 3,862.79

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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.