Home / 2,194.39-3,287.86-1,326.88

Finding the Fourth Proportional to 2,194.39, 3,287.86 and 1,326.88

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Solution

The fourth proportional to 2,194.39, 3,287.86 and 1,326.88 is: 1,988.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,194.39 : 3,287.86 = 1,326.88 : x
  2. Step 2: Convert to fraction form
    2,194.39/3,287.86 = 1,326.88/x
  3. Step 3: Cross multiply
    2,194.39x = 3,287.86 × 1,326.88
  4. Step 4: Simplify right side
    2,194.39x = 4,362,595.68
  5. Step 5: Solve for x
    x = 4,362,595.68/2,194.39
  6. Step 6: Final answer
    x = 1,988.07

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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.