Home / 6,799.28-10,198.48-2,119.20

Finding the Fourth Proportional to 6,799.28, 10,198.48 and 2,119.20

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Solution

The fourth proportional to 6,799.28, 10,198.48 and 2,119.20 is: 3,178.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,799.28 : 10,198.48 = 2,119.20 : x
  2. Step 2: Convert to fraction form
    6,799.28/10,198.48 = 2,119.20/x
  3. Step 3: Cross multiply
    6,799.28x = 10,198.48 × 2,119.20
  4. Step 4: Simplify right side
    6,799.28x = 21,612,618.82
  5. Step 5: Solve for x
    x = 21,612,618.82/6,799.28
  6. Step 6: Final answer
    x = 3,178.66

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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.