Home / 7,766.52-11,650.14-2,220.68

Finding the Fourth Proportional to 7,766.52, 11,650.14 and 2,220.68

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Solution

The fourth proportional to 7,766.52, 11,650.14 and 2,220.68 is: 3,331.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.52 : 11,650.14 = 2,220.68 : x
  2. Step 2: Convert to fraction form
    7,766.52/11,650.14 = 2,220.68/x
  3. Step 3: Cross multiply
    7,766.52x = 11,650.14 × 2,220.68
  4. Step 4: Simplify right side
    7,766.52x = 25,871,232.90
  5. Step 5: Solve for x
    x = 25,871,232.90/7,766.52
  6. Step 6: Final answer
    x = 3,331.12

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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.