Home / 3,984.80-5,976.48-1,519.07

Finding the Fourth Proportional to 3,984.80, 5,976.48 and 1,519.07

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Solution

The fourth proportional to 3,984.80, 5,976.48 and 1,519.07 is: 2,278.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.80 : 5,976.48 = 1,519.07 : x
  2. Step 2: Convert to fraction form
    3,984.80/5,976.48 = 1,519.07/x
  3. Step 3: Cross multiply
    3,984.80x = 5,976.48 × 1,519.07
  4. Step 4: Simplify right side
    3,984.80x = 9,078,691.47
  5. Step 5: Solve for x
    x = 9,078,691.47/3,984.80
  6. Step 6: Final answer
    x = 2,278.33

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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.