Home / 2,110.20-3,165.34-725.13

Finding the Fourth Proportional to 2,110.20, 3,165.34 and 725.13

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Solution

The fourth proportional to 2,110.20, 3,165.34 and 725.13 is: 1,087.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.20 : 3,165.34 = 725.13 : x
  2. Step 2: Convert to fraction form
    2,110.20/3,165.34 = 725.13/x
  3. Step 3: Cross multiply
    2,110.20x = 3,165.34 × 725.13
  4. Step 4: Simplify right side
    2,110.20x = 2,295,282.99
  5. Step 5: Solve for x
    x = 2,295,282.99/2,110.20
  6. Step 6: Final answer
    x = 1,087.71

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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.