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Finding the Fourth Proportional to 1,481.13, 2,044.01 and 818.03

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Solution

The fourth proportional to 1,481.13, 2,044.01 and 818.03 is: 1,128.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.13 : 2,044.01 = 818.03 : x
  2. Step 2: Convert to fraction form
    1,481.13/2,044.01 = 818.03/x
  3. Step 3: Cross multiply
    1,481.13x = 2,044.01 × 818.03
  4. Step 4: Simplify right side
    1,481.13x = 1,672,047.19
  5. Step 5: Solve for x
    x = 1,672,047.19/1,481.13
  6. Step 6: Final answer
    x = 1,128.90

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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.