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Finding the Fourth Proportional to 2,042.75, 3,063.44 and 810.59

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Solution

The fourth proportional to 2,042.75, 3,063.44 and 810.59 is: 1,215.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,042.75 : 3,063.44 = 810.59 : x
  2. Step 2: Convert to fraction form
    2,042.75/3,063.44 = 810.59/x
  3. Step 3: Cross multiply
    2,042.75x = 3,063.44 × 810.59
  4. Step 4: Simplify right side
    2,042.75x = 2,483,189.78
  5. Step 5: Solve for x
    x = 2,483,189.78/2,042.75
  6. Step 6: Final answer
    x = 1,215.61

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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.