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Finding the Fourth Proportional to 1,805.33, 2,708.17 and 650.81

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Solution

The fourth proportional to 1,805.33, 2,708.17 and 650.81 is: 976.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805.33 : 2,708.17 = 650.81 : x
  2. Step 2: Convert to fraction form
    1,805.33/2,708.17 = 650.81/x
  3. Step 3: Cross multiply
    1,805.33x = 2,708.17 × 650.81
  4. Step 4: Simplify right side
    1,805.33x = 1,762,488.95
  5. Step 5: Solve for x
    x = 1,762,488.95/1,805.33
  6. Step 6: Final answer
    x = 976.27

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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.