Home / 3,204.90-4,420.58-2,142.23

Finding the Fourth Proportional to 3,204.90, 4,420.58 and 2,142.23

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Solution

The fourth proportional to 3,204.90, 4,420.58 and 2,142.23 is: 2,954.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,204.90 : 4,420.58 = 2,142.23 : x
  2. Step 2: Convert to fraction form
    3,204.90/4,420.58 = 2,142.23/x
  3. Step 3: Cross multiply
    3,204.90x = 4,420.58 × 2,142.23
  4. Step 4: Simplify right side
    3,204.90x = 9,469,866.28
  5. Step 5: Solve for x
    x = 9,469,866.28/3,204.90
  6. Step 6: Final answer
    x = 2,954.81

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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.