Home / 5,809.35-8,711.72-2,109.56

Finding the Fourth Proportional to 5,809.35, 8,711.72 and 2,109.56

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Solution

The fourth proportional to 5,809.35, 8,711.72 and 2,109.56 is: 3,163.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,809.35 : 8,711.72 = 2,109.56 : x
  2. Step 2: Convert to fraction form
    5,809.35/8,711.72 = 2,109.56/x
  3. Step 3: Cross multiply
    5,809.35x = 8,711.72 × 2,109.56
  4. Step 4: Simplify right side
    5,809.35x = 18,377,921.68
  5. Step 5: Solve for x
    x = 18,377,921.68/5,809.35
  6. Step 6: Final answer
    x = 3,163.51

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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.