Home / 7,759.25-11,639.56-2,212.47

Finding the Fourth Proportional to 7,759.25, 11,639.56 and 2,212.47

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Solution

The fourth proportional to 7,759.25, 11,639.56 and 2,212.47 is: 3,318.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.25 : 11,639.56 = 2,212.47 : x
  2. Step 2: Convert to fraction form
    7,759.25/11,639.56 = 2,212.47/x
  3. Step 3: Cross multiply
    7,759.25x = 11,639.56 × 2,212.47
  4. Step 4: Simplify right side
    7,759.25x = 25,752,177.31
  5. Step 5: Solve for x
    x = 25,752,177.31/7,759.25
  6. Step 6: Final answer
    x = 3,318.90

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1.5x scale

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.