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Finding the Fourth Proportional to 1,480.34, 2,042.64 and 850.91

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Solution

The fourth proportional to 1,480.34, 2,042.64 and 850.91 is: 1,174.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.34 : 2,042.64 = 850.91 : x
  2. Step 2: Convert to fraction form
    1,480.34/2,042.64 = 850.91/x
  3. Step 3: Cross multiply
    1,480.34x = 2,042.64 × 850.91
  4. Step 4: Simplify right side
    1,480.34x = 1,738,092.59
  5. Step 5: Solve for x
    x = 1,738,092.59/1,480.34
  6. Step 6: Final answer
    x = 1,174.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.