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Finding the Fourth Proportional to 2,450, 3,381 and 1,622.16

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Solution

The fourth proportional to 2,450, 3,381 and 1,622.16 is: 2,238.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,450 : 3,381 = 1,622.16 : x
  2. Step 2: Convert to fraction form
    2,450/3,381 = 1,622.16/x
  3. Step 3: Cross multiply
    2,450x = 3,381 × 1,622.16
  4. Step 4: Simplify right side
    2,450x = 5,484,522.96
  5. Step 5: Solve for x
    x = 5,484,522.96/2,450
  6. Step 6: Final answer
    x = 2,238.58

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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.