Home / 2,194.40-3,290.82-961.44

Finding the Fourth Proportional to 2,194.40, 3,290.82 and 961.44

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Solution

The fourth proportional to 2,194.40, 3,290.82 and 961.44 is: 1,441.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,194.40 : 3,290.82 = 961.44 : x
  2. Step 2: Convert to fraction form
    2,194.40/3,290.82 = 961.44/x
  3. Step 3: Cross multiply
    2,194.40x = 3,290.82 × 961.44
  4. Step 4: Simplify right side
    2,194.40x = 3,163,925.98
  5. Step 5: Solve for x
    x = 3,163,925.98/2,194.40
  6. Step 6: Final answer
    x = 1,441.82

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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.