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Finding the Fourth Proportional to 3,213.91, 4,435.13 and 1,797.62

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Solution

The fourth proportional to 3,213.91, 4,435.13 and 1,797.62 is: 2,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.91 : 4,435.13 = 1,797.62 : x
  2. Step 2: Convert to fraction form
    3,213.91/4,435.13 = 1,797.62/x
  3. Step 3: Cross multiply
    3,213.91x = 4,435.13 × 1,797.62
  4. Step 4: Simplify right side
    3,213.91x = 7,972,678.39
  5. Step 5: Solve for x
    x = 7,972,678.39/3,213.91
  6. Step 6: Final answer
    x = 2,480.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.