Home / 2,217.22-3,326.79-1,190.02

Finding the Fourth Proportional to 2,217.22, 3,326.79 and 1,190.02

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Solution

The fourth proportional to 2,217.22, 3,326.79 and 1,190.02 is: 1,785.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.22 : 3,326.79 = 1,190.02 : x
  2. Step 2: Convert to fraction form
    2,217.22/3,326.79 = 1,190.02/x
  3. Step 3: Cross multiply
    2,217.22x = 3,326.79 × 1,190.02
  4. Step 4: Simplify right side
    2,217.22x = 3,958,946.64
  5. Step 5: Solve for x
    x = 3,958,946.64/2,217.22
  6. Step 6: Final answer
    x = 1,785.55

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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.