Home / 7,984.65-11,976.42-2,986.07

Finding the Fourth Proportional to 7,984.65, 11,976.42 and 2,986.07

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Solution

The fourth proportional to 7,984.65, 11,976.42 and 2,986.07 is: 4,478.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.65 : 11,976.42 = 2,986.07 : x
  2. Step 2: Convert to fraction form
    7,984.65/11,976.42 = 2,986.07/x
  3. Step 3: Cross multiply
    7,984.65x = 11,976.42 × 2,986.07
  4. Step 4: Simplify right side
    7,984.65x = 35,762,413.54
  5. Step 5: Solve for x
    x = 35,762,413.54/7,984.65
  6. Step 6: Final answer
    x = 4,478.90

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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.