Home / 7,629.32-11,449.84-3,413.88

Finding the Fourth Proportional to 7,629.32, 11,449.84 and 3,413.88

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Solution

The fourth proportional to 7,629.32, 11,449.84 and 3,413.88 is: 5,123.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.32 : 11,449.84 = 3,413.88 : x
  2. Step 2: Convert to fraction form
    7,629.32/11,449.84 = 3,413.88/x
  3. Step 3: Cross multiply
    7,629.32x = 11,449.84 × 3,413.88
  4. Step 4: Simplify right side
    7,629.32x = 39,088,377.65
  5. Step 5: Solve for x
    x = 39,088,377.65/7,629.32
  6. Step 6: Final answer
    x = 5,123.44

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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.