Home / 7,984.14-11,976.28-2,790.02

Finding the Fourth Proportional to 7,984.14, 11,976.28 and 2,790.02

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Solution

The fourth proportional to 7,984.14, 11,976.28 and 2,790.02 is: 4,185.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.14 : 11,976.28 = 2,790.02 : x
  2. Step 2: Convert to fraction form
    7,984.14/11,976.28 = 2,790.02/x
  3. Step 3: Cross multiply
    7,984.14x = 11,976.28 × 2,790.02
  4. Step 4: Simplify right side
    7,984.14x = 33,414,060.73
  5. Step 5: Solve for x
    x = 33,414,060.73/7,984.14
  6. Step 6: Final answer
    x = 4,185.05

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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.