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Finding the Fourth Proportional to 1,043.82, 1,566.05 and 673.79

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Solution

The fourth proportional to 1,043.82, 1,566.05 and 673.79 is: 1,010.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.82 : 1,566.05 = 673.79 : x
  2. Step 2: Convert to fraction form
    1,043.82/1,566.05 = 673.79/x
  3. Step 3: Cross multiply
    1,043.82x = 1,566.05 × 673.79
  4. Step 4: Simplify right side
    1,043.82x = 1,055,177.63
  5. Step 5: Solve for x
    x = 1,055,177.63/1,043.82
  6. Step 6: Final answer
    x = 1,010.88

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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.