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Finding the Fourth Proportional to 3,269.63, 4,511.09 and 1,853.09

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Solution

The fourth proportional to 3,269.63, 4,511.09 and 1,853.09 is: 2,556.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,269.63 : 4,511.09 = 1,853.09 : x
  2. Step 2: Convert to fraction form
    3,269.63/4,511.09 = 1,853.09/x
  3. Step 3: Cross multiply
    3,269.63x = 4,511.09 × 1,853.09
  4. Step 4: Simplify right side
    3,269.63x = 8,359,423.95
  5. Step 5: Solve for x
    x = 8,359,423.95/3,269.63
  6. Step 6: Final answer
    x = 2,556.69

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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.