Home / 7,761.83-11,644.52-2,215.22

Finding the Fourth Proportional to 7,761.83, 11,644.52 and 2,215.22

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Solution

The fourth proportional to 7,761.83, 11,644.52 and 2,215.22 is: 3,323.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,761.83 : 11,644.52 = 2,215.22 : x
  2. Step 2: Convert to fraction form
    7,761.83/11,644.52 = 2,215.22/x
  3. Step 3: Cross multiply
    7,761.83x = 11,644.52 × 2,215.22
  4. Step 4: Simplify right side
    7,761.83x = 25,795,104.30
  5. Step 5: Solve for x
    x = 25,795,104.30/7,761.83
  6. Step 6: Final answer
    x = 3,323.33

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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.