Home / 7,799.20-11,683.68-3,906.88

Finding the Fourth Proportional to 7,799.20, 11,683.68 and 3,906.88

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Solution

The fourth proportional to 7,799.20, 11,683.68 and 3,906.88 is: 5,852.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,799.20 : 11,683.68 = 3,906.88 : x
  2. Step 2: Convert to fraction form
    7,799.20/11,683.68 = 3,906.88/x
  3. Step 3: Cross multiply
    7,799.20x = 11,683.68 × 3,906.88
  4. Step 4: Simplify right side
    7,799.20x = 45,646,735.72
  5. Step 5: Solve for x
    x = 45,646,735.72/7,799.20
  6. Step 6: Final answer
    x = 5,852.75

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1.5x scale

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.