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Finding the Fourth Proportional to 2,136.39, 3,204.35 and 576.29

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Solution

The fourth proportional to 2,136.39, 3,204.35 and 576.29 is: 864.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.39 : 3,204.35 = 576.29 : x
  2. Step 2: Convert to fraction form
    2,136.39/3,204.35 = 576.29/x
  3. Step 3: Cross multiply
    2,136.39x = 3,204.35 × 576.29
  4. Step 4: Simplify right side
    2,136.39x = 1,846,645.39
  5. Step 5: Solve for x
    x = 1,846,645.39/2,136.39
  6. Step 6: Final answer
    x = 864.38

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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.