Home / 7,761.25-11,643.83-2,214.61

Finding the Fourth Proportional to 7,761.25, 11,643.83 and 2,214.61

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Solution

The fourth proportional to 7,761.25, 11,643.83 and 2,214.61 is: 3,322.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,761.25 : 11,643.83 = 2,214.61 : x
  2. Step 2: Convert to fraction form
    7,761.25/11,643.83 = 2,214.61/x
  3. Step 3: Cross multiply
    7,761.25x = 11,643.83 × 2,214.61
  4. Step 4: Simplify right side
    7,761.25x = 25,786,542.69
  5. Step 5: Solve for x
    x = 25,786,542.69/7,761.25
  6. Step 6: Final answer
    x = 3,322.47

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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.