Home / 7,766.28-11,651.22-2,571.84

Finding the Fourth Proportional to 7,766.28, 11,651.22 and 2,571.84

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Solution

The fourth proportional to 7,766.28, 11,651.22 and 2,571.84 is: 3,858.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.28 : 11,651.22 = 2,571.84 : x
  2. Step 2: Convert to fraction form
    7,766.28/11,651.22 = 2,571.84/x
  3. Step 3: Cross multiply
    7,766.28x = 11,651.22 × 2,571.84
  4. Step 4: Simplify right side
    7,766.28x = 29,965,073.64
  5. Step 5: Solve for x
    x = 29,965,073.64/7,766.28
  6. Step 6: Final answer
    x = 3,858.36

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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.