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Finding the Fourth Proportional to 1,136.16, 1,703.94 and 844

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Solution

The fourth proportional to 1,136.16, 1,703.94 and 844 is: 1,265.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.16 : 1,703.94 = 844 : x
  2. Step 2: Convert to fraction form
    1,136.16/1,703.94 = 844/x
  3. Step 3: Cross multiply
    1,136.16x = 1,703.94 × 844
  4. Step 4: Simplify right side
    1,136.16x = 1,438,125.36
  5. Step 5: Solve for x
    x = 1,438,125.36/1,136.16
  6. Step 6: Final answer
    x = 1,265.78

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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.