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Finding the Fourth Proportional to 2,205.68, 3,044.16 and 1,322

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Solution

The fourth proportional to 2,205.68, 3,044.16 and 1,322 is: 1,824.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.68 : 3,044.16 = 1,322 : x
  2. Step 2: Convert to fraction form
    2,205.68/3,044.16 = 1,322/x
  3. Step 3: Cross multiply
    2,205.68x = 3,044.16 × 1,322
  4. Step 4: Simplify right side
    2,205.68x = 4,024,379.52
  5. Step 5: Solve for x
    x = 4,024,379.52/2,205.68
  6. Step 6: Final answer
    x = 1,824.55

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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.