Home / 3,387.91-5,090.07-2,157.73

Finding the Fourth Proportional to 3,387.91, 5,090.07 and 2,157.73

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Solution

The fourth proportional to 3,387.91, 5,090.07 and 2,157.73 is: 3,241.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.91 : 5,090.07 = 2,157.73 : x
  2. Step 2: Convert to fraction form
    3,387.91/5,090.07 = 2,157.73/x
  3. Step 3: Cross multiply
    3,387.91x = 5,090.07 × 2,157.73
  4. Step 4: Simplify right side
    3,387.91x = 10,982,996.74
  5. Step 5: Solve for x
    x = 10,982,996.74/3,387.91
  6. Step 6: Final answer
    x = 3,241.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.