Home / 3,519.62-5,278.68-1,179.80

Finding the Fourth Proportional to 3,519.62, 5,278.68 and 1,179.80

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Solution

The fourth proportional to 3,519.62, 5,278.68 and 1,179.80 is: 1,769.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.62 : 5,278.68 = 1,179.80 : x
  2. Step 2: Convert to fraction form
    3,519.62/5,278.68 = 1,179.80/x
  3. Step 3: Cross multiply
    3,519.62x = 5,278.68 × 1,179.80
  4. Step 4: Simplify right side
    3,519.62x = 6,227,786.66
  5. Step 5: Solve for x
    x = 6,227,786.66/3,519.62
  6. Step 6: Final answer
    x = 1,769.45

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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.