Home / 7,766.21-11,647.88-2,571.41

Finding the Fourth Proportional to 7,766.21, 11,647.88 and 2,571.41

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Solution

The fourth proportional to 7,766.21, 11,647.88 and 2,571.41 is: 3,856.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.21 : 11,647.88 = 2,571.41 : x
  2. Step 2: Convert to fraction form
    7,766.21/11,647.88 = 2,571.41/x
  3. Step 3: Cross multiply
    7,766.21x = 11,647.88 × 2,571.41
  4. Step 4: Simplify right side
    7,766.21x = 29,951,462.25
  5. Step 5: Solve for x
    x = 29,951,462.25/7,766.21
  6. Step 6: Final answer
    x = 3,856.64

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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.