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Finding the Fourth Proportional to 1,136.73, 1,704.08 and 551.37

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Solution

The fourth proportional to 1,136.73, 1,704.08 and 551.37 is: 826.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.73 : 1,704.08 = 551.37 : x
  2. Step 2: Convert to fraction form
    1,136.73/1,704.08 = 551.37/x
  3. Step 3: Cross multiply
    1,136.73x = 1,704.08 × 551.37
  4. Step 4: Simplify right side
    1,136.73x = 939,578.59
  5. Step 5: Solve for x
    x = 939,578.59/1,136.73
  6. Step 6: Final answer
    x = 826.56

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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.