Home / 7,979.97-11,966.31-2,784.63

Finding the Fourth Proportional to 7,979.97, 11,966.31 and 2,784.63

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Solution

The fourth proportional to 7,979.97, 11,966.31 and 2,784.63 is: 4,175.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.97 : 11,966.31 = 2,784.63 : x
  2. Step 2: Convert to fraction form
    7,979.97/11,966.31 = 2,784.63/x
  3. Step 3: Cross multiply
    7,979.97x = 11,966.31 × 2,784.63
  4. Step 4: Simplify right side
    7,979.97x = 33,321,745.82
  5. Step 5: Solve for x
    x = 33,321,745.82/7,979.97
  6. Step 6: Final answer
    x = 4,175.67

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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.