Home / 7,979.03-11,974.01-2,784.90

Finding the Fourth Proportional to 7,979.03, 11,974.01 and 2,784.90

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Solution

The fourth proportional to 7,979.03, 11,974.01 and 2,784.90 is: 4,179.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.03 : 11,974.01 = 2,784.90 : x
  2. Step 2: Convert to fraction form
    7,979.03/11,974.01 = 2,784.90/x
  3. Step 3: Cross multiply
    7,979.03x = 11,974.01 × 2,784.90
  4. Step 4: Simplify right side
    7,979.03x = 33,346,406.52
  5. Step 5: Solve for x
    x = 33,346,406.52/7,979.03
  6. Step 6: Final answer
    x = 4,179.26

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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.