Home / 7,112.78-10,669.07-3,217.19

Finding the Fourth Proportional to 7,112.78, 10,669.07 and 3,217.19

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Solution

The fourth proportional to 7,112.78, 10,669.07 and 3,217.19 is: 4,825.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.78 : 10,669.07 = 3,217.19 : x
  2. Step 2: Convert to fraction form
    7,112.78/10,669.07 = 3,217.19/x
  3. Step 3: Cross multiply
    7,112.78x = 10,669.07 × 3,217.19
  4. Step 4: Simplify right side
    7,112.78x = 34,324,355.88
  5. Step 5: Solve for x
    x = 34,324,355.88/7,112.78
  6. Step 6: Final answer
    x = 4,825.73

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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.