Home / 7,922.21-11,884.59-2,992.28

Finding the Fourth Proportional to 7,922.21, 11,884.59 and 2,992.28

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Solution

The fourth proportional to 7,922.21, 11,884.59 and 2,992.28 is: 4,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.21 : 11,884.59 = 2,992.28 : x
  2. Step 2: Convert to fraction form
    7,922.21/11,884.59 = 2,992.28/x
  3. Step 3: Cross multiply
    7,922.21x = 11,884.59 × 2,992.28
  4. Step 4: Simplify right side
    7,922.21x = 35,561,961.54
  5. Step 5: Solve for x
    x = 35,561,961.54/7,922.21
  6. Step 6: Final answer
    x = 4,488.90

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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.