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Finding the Fourth Proportional to 3,293, 4,544.34 and 1,821

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Solution

The fourth proportional to 3,293, 4,544.34 and 1,821 is: 2,512.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,293 : 4,544.34 = 1,821 : x
  2. Step 2: Convert to fraction form
    3,293/4,544.34 = 1,821/x
  3. Step 3: Cross multiply
    3,293x = 4,544.34 × 1,821
  4. Step 4: Simplify right side
    3,293x = 8,275,243.14
  5. Step 5: Solve for x
    x = 8,275,243.14/3,293
  6. Step 6: Final answer
    x = 2,512.98

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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.