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Finding the Fourth Proportional to 2,136.57, 3,204.59 and 576.70

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Solution

The fourth proportional to 2,136.57, 3,204.59 and 576.70 is: 864.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.57 : 3,204.59 = 576.70 : x
  2. Step 2: Convert to fraction form
    2,136.57/3,204.59 = 576.70/x
  3. Step 3: Cross multiply
    2,136.57x = 3,204.59 × 576.70
  4. Step 4: Simplify right side
    2,136.57x = 1,848,087.05
  5. Step 5: Solve for x
    x = 1,848,087.05/2,136.57
  6. Step 6: Final answer
    x = 864.98

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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.