Home / 2,213.40-3,320.62-674.44

Finding the Fourth Proportional to 2,213.40, 3,320.62 and 674.44

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Solution

The fourth proportional to 2,213.40, 3,320.62 and 674.44 is: 1,011.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.40 : 3,320.62 = 674.44 : x
  2. Step 2: Convert to fraction form
    2,213.40/3,320.62 = 674.44/x
  3. Step 3: Cross multiply
    2,213.40x = 3,320.62 × 674.44
  4. Step 4: Simplify right side
    2,213.40x = 2,239,558.95
  5. Step 5: Solve for x
    x = 2,239,558.95/2,213.40
  6. Step 6: Final answer
    x = 1,011.82

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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.