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Finding the Fourth Proportional to 2,122.74, 3,184.10 and 662.01

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Solution

The fourth proportional to 2,122.74, 3,184.10 and 662.01 is: 993.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.74 : 3,184.10 = 662.01 : x
  2. Step 2: Convert to fraction form
    2,122.74/3,184.10 = 662.01/x
  3. Step 3: Cross multiply
    2,122.74x = 3,184.10 × 662.01
  4. Step 4: Simplify right side
    2,122.74x = 2,107,906.04
  5. Step 5: Solve for x
    x = 2,107,906.04/2,122.74
  6. Step 6: Final answer
    x = 993.01

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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.