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Finding the Fourth Proportional to 2,469.44, 3,702.72 and 1,172

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Solution

The fourth proportional to 2,469.44, 3,702.72 and 1,172 is: 1,757.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,469.44 : 3,702.72 = 1,172 : x
  2. Step 2: Convert to fraction form
    2,469.44/3,702.72 = 1,172/x
  3. Step 3: Cross multiply
    2,469.44x = 3,702.72 × 1,172
  4. Step 4: Simplify right side
    2,469.44x = 4,339,587.84
  5. Step 5: Solve for x
    x = 4,339,587.84/2,469.44
  6. Step 6: Final answer
    x = 1,757.32

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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.