Home / 3,319.82-4,979.73-1,369.88

Finding the Fourth Proportional to 3,319.82, 4,979.73 and 1,369.88

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Solution

The fourth proportional to 3,319.82, 4,979.73 and 1,369.88 is: 2,054.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.82 : 4,979.73 = 1,369.88 : x
  2. Step 2: Convert to fraction form
    3,319.82/4,979.73 = 1,369.88/x
  3. Step 3: Cross multiply
    3,319.82x = 4,979.73 × 1,369.88
  4. Step 4: Simplify right side
    3,319.82x = 6,821,632.53
  5. Step 5: Solve for x
    x = 6,821,632.53/3,319.82
  6. Step 6: Final answer
    x = 2,054.82

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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.