Home / 6,799.82-10,199.72-2,120.85

Finding the Fourth Proportional to 6,799.82, 10,199.72 and 2,120.85

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Solution

The fourth proportional to 6,799.82, 10,199.72 and 2,120.85 is: 3,181.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,799.82 : 10,199.72 = 2,120.85 : x
  2. Step 2: Convert to fraction form
    6,799.82/10,199.72 = 2,120.85/x
  3. Step 3: Cross multiply
    6,799.82x = 10,199.72 × 2,120.85
  4. Step 4: Simplify right side
    6,799.82x = 21,632,081.46
  5. Step 5: Solve for x
    x = 21,632,081.46/6,799.82
  6. Step 6: Final answer
    x = 3,181.28

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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.