Home / 3,857.97-5,323.99-2,179.30

Finding the Fourth Proportional to 3,857.97, 5,323.99 and 2,179.30

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Solution

The fourth proportional to 3,857.97, 5,323.99 and 2,179.30 is: 3,007.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.97 : 5,323.99 = 2,179.30 : x
  2. Step 2: Convert to fraction form
    3,857.97/5,323.99 = 2,179.30/x
  3. Step 3: Cross multiply
    3,857.97x = 5,323.99 × 2,179.30
  4. Step 4: Simplify right side
    3,857.97x = 11,602,571.41
  5. Step 5: Solve for x
    x = 11,602,571.41/3,857.97
  6. Step 6: Final answer
    x = 3,007.43

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Similar ratio
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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.