Home / 7,892.82-11,837.39-3,211.56

Finding the Fourth Proportional to 7,892.82, 11,837.39 and 3,211.56

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Solution

The fourth proportional to 7,892.82, 11,837.39 and 3,211.56 is: 4,816.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,892.82 : 11,837.39 = 3,211.56 : x
  2. Step 2: Convert to fraction form
    7,892.82/11,837.39 = 3,211.56/x
  3. Step 3: Cross multiply
    7,892.82x = 11,837.39 × 3,211.56
  4. Step 4: Simplify right side
    7,892.82x = 38,016,472.17
  5. Step 5: Solve for x
    x = 38,016,472.17/7,892.82
  6. Step 6: Final answer
    x = 4,816.59

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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.