Home / 7,480.78-11,229.37-3,101.31

Finding the Fourth Proportional to 7,480.78, 11,229.37 and 3,101.31

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Solution

The fourth proportional to 7,480.78, 11,229.37 and 3,101.31 is: 4,655.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.78 : 11,229.37 = 3,101.31 : x
  2. Step 2: Convert to fraction form
    7,480.78/11,229.37 = 3,101.31/x
  3. Step 3: Cross multiply
    7,480.78x = 11,229.37 × 3,101.31
  4. Step 4: Simplify right side
    7,480.78x = 34,825,793.30
  5. Step 5: Solve for x
    x = 34,825,793.30/7,480.78
  6. Step 6: Final answer
    x = 4,655.37

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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.