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Finding the Fourth Proportional to 2,122, 3,183.18 and 583

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Solution

The fourth proportional to 2,122, 3,183.18 and 583 is: 874.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122 : 3,183.18 = 583 : x
  2. Step 2: Convert to fraction form
    2,122/3,183.18 = 583/x
  3. Step 3: Cross multiply
    2,122x = 3,183.18 × 583
  4. Step 4: Simplify right side
    2,122x = 1,855,793.94
  5. Step 5: Solve for x
    x = 1,855,793.94/2,122
  6. Step 6: Final answer
    x = 874.55

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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.