Home / 3,908.49-5,393.41-2,140.03

Finding the Fourth Proportional to 3,908.49, 5,393.41 and 2,140.03

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Solution

The fourth proportional to 3,908.49, 5,393.41 and 2,140.03 is: 2,953.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.49 : 5,393.41 = 2,140.03 : x
  2. Step 2: Convert to fraction form
    3,908.49/5,393.41 = 2,140.03/x
  3. Step 3: Cross multiply
    3,908.49x = 5,393.41 × 2,140.03
  4. Step 4: Simplify right side
    3,908.49x = 11,542,059.20
  5. Step 5: Solve for x
    x = 11,542,059.20/3,908.49
  6. Step 6: Final answer
    x = 2,953.07

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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.