Home / 3,427.35-5,142.49-1,673.90

Finding the Fourth Proportional to 3,427.35, 5,142.49 and 1,673.90

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Solution

The fourth proportional to 3,427.35, 5,142.49 and 1,673.90 is: 2,511.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.35 : 5,142.49 = 1,673.90 : x
  2. Step 2: Convert to fraction form
    3,427.35/5,142.49 = 1,673.90/x
  3. Step 3: Cross multiply
    3,427.35x = 5,142.49 × 1,673.90
  4. Step 4: Simplify right side
    3,427.35x = 8,608,022.68
  5. Step 5: Solve for x
    x = 8,608,022.68/3,427.35
  6. Step 6: Final answer
    x = 2,511.57

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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.