Home / 7,965.88-11,948.78-2,771.75

Finding the Fourth Proportional to 7,965.88, 11,948.78 and 2,771.75

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Solution

The fourth proportional to 7,965.88, 11,948.78 and 2,771.75 is: 4,157.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.88 : 11,948.78 = 2,771.75 : x
  2. Step 2: Convert to fraction form
    7,965.88/11,948.78 = 2,771.75/x
  3. Step 3: Cross multiply
    7,965.88x = 11,948.78 × 2,771.75
  4. Step 4: Simplify right side
    7,965.88x = 33,119,067.77
  5. Step 5: Solve for x
    x = 33,119,067.77/7,965.88
  6. Step 6: Final answer
    x = 4,157.62

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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.