Home / 3,799.39-5,680.35-3,220.85

Finding the Fourth Proportional to 3,799.39, 5,680.35 and 3,220.85

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Solution

The fourth proportional to 3,799.39, 5,680.35 and 3,220.85 is: 4,815.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,799.39 : 5,680.35 = 3,220.85 : x
  2. Step 2: Convert to fraction form
    3,799.39/5,680.35 = 3,220.85/x
  3. Step 3: Cross multiply
    3,799.39x = 5,680.35 × 3,220.85
  4. Step 4: Simplify right side
    3,799.39x = 18,295,555.30
  5. Step 5: Solve for x
    x = 18,295,555.30/3,799.39
  6. Step 6: Final answer
    x = 4,815.39

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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.