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Finding the Fourth Proportional to 2,469.62, 3,407.85 and 1,407.44

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Solution

The fourth proportional to 2,469.62, 3,407.85 and 1,407.44 is: 1,942.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,469.62 : 3,407.85 = 1,407.44 : x
  2. Step 2: Convert to fraction form
    2,469.62/3,407.85 = 1,407.44/x
  3. Step 3: Cross multiply
    2,469.62x = 3,407.85 × 1,407.44
  4. Step 4: Simplify right side
    2,469.62x = 4,796,344.40
  5. Step 5: Solve for x
    x = 4,796,344.40/2,469.62
  6. Step 6: Final answer
    x = 1,942.14

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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.