Home / 7,921.11-11,884.38-2,992.17

Finding the Fourth Proportional to 7,921.11, 11,884.38 and 2,992.17

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Solution

The fourth proportional to 7,921.11, 11,884.38 and 2,992.17 is: 4,489.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.11 : 11,884.38 = 2,992.17 : x
  2. Step 2: Convert to fraction form
    7,921.11/11,884.38 = 2,992.17/x
  3. Step 3: Cross multiply
    7,921.11x = 11,884.38 × 2,992.17
  4. Step 4: Simplify right side
    7,921.11x = 35,560,085.30
  5. Step 5: Solve for x
    x = 35,560,085.30/7,921.11
  6. Step 6: Final answer
    x = 4,489.28

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1.5x scale

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.