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Finding the Fourth Proportional to 3,034.48, 4,551.68 and 843.20

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Solution

The fourth proportional to 3,034.48, 4,551.68 and 843.20 is: 1,264.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,034.48 : 4,551.68 = 843.20 : x
  2. Step 2: Convert to fraction form
    3,034.48/4,551.68 = 843.20/x
  3. Step 3: Cross multiply
    3,034.48x = 4,551.68 × 843.20
  4. Step 4: Simplify right side
    3,034.48x = 3,837,976.58
  5. Step 5: Solve for x
    x = 3,837,976.58/3,034.48
  6. Step 6: Final answer
    x = 1,264.79

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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.