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Finding the Fourth Proportional to 2,027.62, 3,041.97 and 640.99

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Solution

The fourth proportional to 2,027.62, 3,041.97 and 640.99 is: 961.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.62 : 3,041.97 = 640.99 : x
  2. Step 2: Convert to fraction form
    2,027.62/3,041.97 = 640.99/x
  3. Step 3: Cross multiply
    2,027.62x = 3,041.97 × 640.99
  4. Step 4: Simplify right side
    2,027.62x = 1,949,872.35
  5. Step 5: Solve for x
    x = 1,949,872.35/2,027.62
  6. Step 6: Final answer
    x = 961.66

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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.