Home / 2,212.32-3,316.62-1,479.66

Finding the Fourth Proportional to 2,212.32, 3,316.62 and 1,479.66

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Solution

The fourth proportional to 2,212.32, 3,316.62 and 1,479.66 is: 2,218.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.32 : 3,316.62 = 1,479.66 : x
  2. Step 2: Convert to fraction form
    2,212.32/3,316.62 = 1,479.66/x
  3. Step 3: Cross multiply
    2,212.32x = 3,316.62 × 1,479.66
  4. Step 4: Simplify right side
    2,212.32x = 4,907,469.95
  5. Step 5: Solve for x
    x = 4,907,469.95/2,212.32
  6. Step 6: Final answer
    x = 2,218.25

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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.