Home / 3,783.97-5,220.43-2,791.62

Finding the Fourth Proportional to 3,783.97, 5,220.43 and 2,791.62

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Solution

The fourth proportional to 3,783.97, 5,220.43 and 2,791.62 is: 3,851.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.97 : 5,220.43 = 2,791.62 : x
  2. Step 2: Convert to fraction form
    3,783.97/5,220.43 = 2,791.62/x
  3. Step 3: Cross multiply
    3,783.97x = 5,220.43 × 2,791.62
  4. Step 4: Simplify right side
    3,783.97x = 14,573,456.80
  5. Step 5: Solve for x
    x = 14,573,456.80/3,783.97
  6. Step 6: Final answer
    x = 3,851.37

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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.