Home / 3,201.92-4,420.56-2,316.80

Finding the Fourth Proportional to 3,201.92, 4,420.56 and 2,316.80

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Solution

The fourth proportional to 3,201.92, 4,420.56 and 2,316.80 is: 3,198.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.92 : 4,420.56 = 2,316.80 : x
  2. Step 2: Convert to fraction form
    3,201.92/4,420.56 = 2,316.80/x
  3. Step 3: Cross multiply
    3,201.92x = 4,420.56 × 2,316.80
  4. Step 4: Simplify right side
    3,201.92x = 10,241,553.41
  5. Step 5: Solve for x
    x = 10,241,553.41/3,201.92
  6. Step 6: Final answer
    x = 3,198.57

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1.5x scale

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.