Home / 7,991.21-11,992.26-2,797.04

Finding the Fourth Proportional to 7,991.21, 11,992.26 and 2,797.04

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Solution

The fourth proportional to 7,991.21, 11,992.26 and 2,797.04 is: 4,197.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.21 : 11,992.26 = 2,797.04 : x
  2. Step 2: Convert to fraction form
    7,991.21/11,992.26 = 2,797.04/x
  3. Step 3: Cross multiply
    7,991.21x = 11,992.26 × 2,797.04
  4. Step 4: Simplify right side
    7,991.21x = 33,542,830.91
  5. Step 5: Solve for x
    x = 33,542,830.91/7,991.21
  6. Step 6: Final answer
    x = 4,197.47

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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.