Home / 7,720.82-11,584.52-3,775.61

Finding the Fourth Proportional to 7,720.82, 11,584.52 and 3,775.61

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Solution

The fourth proportional to 7,720.82, 11,584.52 and 3,775.61 is: 5,665.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.82 : 11,584.52 = 3,775.61 : x
  2. Step 2: Convert to fraction form
    7,720.82/11,584.52 = 3,775.61/x
  3. Step 3: Cross multiply
    7,720.82x = 11,584.52 × 3,775.61
  4. Step 4: Simplify right side
    7,720.82x = 43,738,653.80
  5. Step 5: Solve for x
    x = 43,738,653.80/7,720.82
  6. Step 6: Final answer
    x = 5,665.03

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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.