Home / 3,243.78-4,475.25-1,845.72

Finding the Fourth Proportional to 3,243.78, 4,475.25 and 1,845.72

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Solution

The fourth proportional to 3,243.78, 4,475.25 and 1,845.72 is: 2,546.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.78 : 4,475.25 = 1,845.72 : x
  2. Step 2: Convert to fraction form
    3,243.78/4,475.25 = 1,845.72/x
  3. Step 3: Cross multiply
    3,243.78x = 4,475.25 × 1,845.72
  4. Step 4: Simplify right side
    3,243.78x = 8,260,058.43
  5. Step 5: Solve for x
    x = 8,260,058.43/3,243.78
  6. Step 6: Final answer
    x = 2,546.43

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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.