Home / 7,480.86-11,217.36-3,319.07

Finding the Fourth Proportional to 7,480.86, 11,217.36 and 3,319.07

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Solution

The fourth proportional to 7,480.86, 11,217.36 and 3,319.07 is: 4,976.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.86 : 11,217.36 = 3,319.07 : x
  2. Step 2: Convert to fraction form
    7,480.86/11,217.36 = 3,319.07/x
  3. Step 3: Cross multiply
    7,480.86x = 11,217.36 × 3,319.07
  4. Step 4: Simplify right side
    7,480.86x = 37,231,146.97
  5. Step 5: Solve for x
    x = 37,231,146.97/7,480.86
  6. Step 6: Final answer
    x = 4,976.85

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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.