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Finding the Fourth Proportional to 2,213.44, 3,320.17 and 897.22

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Solution

The fourth proportional to 2,213.44, 3,320.17 and 897.22 is: 1,345.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.44 : 3,320.17 = 897.22 : x
  2. Step 2: Convert to fraction form
    2,213.44/3,320.17 = 897.22/x
  3. Step 3: Cross multiply
    2,213.44x = 3,320.17 × 897.22
  4. Step 4: Simplify right side
    2,213.44x = 2,978,922.93
  5. Step 5: Solve for x
    x = 2,978,922.93/2,213.44
  6. Step 6: Final answer
    x = 1,345.83

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Double scale
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Similar ratio
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1.5x scale

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.