Home / 3,593.40-5,390.11-2,131.75

Finding the Fourth Proportional to 3,593.40, 5,390.11 and 2,131.75

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Solution

The fourth proportional to 3,593.40, 5,390.11 and 2,131.75 is: 3,197.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,593.40 : 5,390.11 = 2,131.75 : x
  2. Step 2: Convert to fraction form
    3,593.40/5,390.11 = 2,131.75/x
  3. Step 3: Cross multiply
    3,593.40x = 5,390.11 × 2,131.75
  4. Step 4: Simplify right side
    3,593.40x = 11,490,376.39
  5. Step 5: Solve for x
    x = 11,490,376.39/3,593.40
  6. Step 6: Final answer
    x = 3,197.64

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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.