Home / 7,991.73-11,989.44-2,445.89

Finding the Fourth Proportional to 7,991.73, 11,989.44 and 2,445.89

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Solution

The fourth proportional to 7,991.73, 11,989.44 and 2,445.89 is: 3,669.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.73 : 11,989.44 = 2,445.89 : x
  2. Step 2: Convert to fraction form
    7,991.73/11,989.44 = 2,445.89/x
  3. Step 3: Cross multiply
    7,991.73x = 11,989.44 × 2,445.89
  4. Step 4: Simplify right side
    7,991.73x = 29,324,791.45
  5. Step 5: Solve for x
    x = 29,324,791.45/7,991.73
  6. Step 6: Final answer
    x = 3,669.39

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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.