Home / 7,992.27-11,981.12-2,795.31

Finding the Fourth Proportional to 7,992.27, 11,981.12 and 2,795.31

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Solution

The fourth proportional to 7,992.27, 11,981.12 and 2,795.31 is: 4,190.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.27 : 11,981.12 = 2,795.31 : x
  2. Step 2: Convert to fraction form
    7,992.27/11,981.12 = 2,795.31/x
  3. Step 3: Cross multiply
    7,992.27x = 11,981.12 × 2,795.31
  4. Step 4: Simplify right side
    7,992.27x = 33,490,930.57
  5. Step 5: Solve for x
    x = 33,490,930.57/7,992.27
  6. Step 6: Final answer
    x = 4,190.42

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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.