Home / 3,388.39-5,079.66-1,309.85

Finding the Fourth Proportional to 3,388.39, 5,079.66 and 1,309.85

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Solution

The fourth proportional to 3,388.39, 5,079.66 and 1,309.85 is: 1,963.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.39 : 5,079.66 = 1,309.85 : x
  2. Step 2: Convert to fraction form
    3,388.39/5,079.66 = 1,309.85/x
  3. Step 3: Cross multiply
    3,388.39x = 5,079.66 × 1,309.85
  4. Step 4: Simplify right side
    3,388.39x = 6,653,592.65
  5. Step 5: Solve for x
    x = 6,653,592.65/3,388.39
  6. Step 6: Final answer
    x = 1,963.64

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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.