Home / 7,922.25-11,882.90-2,991.24

Finding the Fourth Proportional to 7,922.25, 11,882.90 and 2,991.24

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Solution

The fourth proportional to 7,922.25, 11,882.90 and 2,991.24 is: 4,486.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.25 : 11,882.90 = 2,991.24 : x
  2. Step 2: Convert to fraction form
    7,922.25/11,882.90 = 2,991.24/x
  3. Step 3: Cross multiply
    7,922.25x = 11,882.90 × 2,991.24
  4. Step 4: Simplify right side
    7,922.25x = 35,544,590.84
  5. Step 5: Solve for x
    x = 35,544,590.84/7,922.25
  6. Step 6: Final answer
    x = 4,486.68

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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.