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Finding the Fourth Proportional to 1,273.56, 1,908.19 and 834.33

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Solution

The fourth proportional to 1,273.56, 1,908.19 and 834.33 is: 1,250.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273.56 : 1,908.19 = 834.33 : x
  2. Step 2: Convert to fraction form
    1,273.56/1,908.19 = 834.33/x
  3. Step 3: Cross multiply
    1,273.56x = 1,908.19 × 834.33
  4. Step 4: Simplify right side
    1,273.56x = 1,592,060.16
  5. Step 5: Solve for x
    x = 1,592,060.16/1,273.56
  6. Step 6: Final answer
    x = 1,250.09

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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.