Home / 7,664.62-11,505.03-3,771.76

Finding the Fourth Proportional to 7,664.62, 11,505.03 and 3,771.76

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Solution

The fourth proportional to 7,664.62, 11,505.03 and 3,771.76 is: 5,661.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.62 : 11,505.03 = 3,771.76 : x
  2. Step 2: Convert to fraction form
    7,664.62/11,505.03 = 3,771.76/x
  3. Step 3: Cross multiply
    7,664.62x = 11,505.03 × 3,771.76
  4. Step 4: Simplify right side
    7,664.62x = 43,394,211.95
  5. Step 5: Solve for x
    x = 43,394,211.95/7,664.62
  6. Step 6: Final answer
    x = 5,661.63

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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.