Home / 7,972.82-11,958.92-3,291.63

Finding the Fourth Proportional to 7,972.82, 11,958.92 and 3,291.63

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Solution

The fourth proportional to 7,972.82, 11,958.92 and 3,291.63 is: 4,937.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.82 : 11,958.92 = 3,291.63 : x
  2. Step 2: Convert to fraction form
    7,972.82/11,958.92 = 3,291.63/x
  3. Step 3: Cross multiply
    7,972.82x = 11,958.92 × 3,291.63
  4. Step 4: Simplify right side
    7,972.82x = 39,364,339.84
  5. Step 5: Solve for x
    x = 39,364,339.84/7,972.82
  6. Step 6: Final answer
    x = 4,937.32

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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.