Home / 5,408.06-8,109.23-2,555.55

Finding the Fourth Proportional to 5,408.06, 8,109.23 and 2,555.55

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Solution

The fourth proportional to 5,408.06, 8,109.23 and 2,555.55 is: 3,831.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.06 : 8,109.23 = 2,555.55 : x
  2. Step 2: Convert to fraction form
    5,408.06/8,109.23 = 2,555.55/x
  3. Step 3: Cross multiply
    5,408.06x = 8,109.23 × 2,555.55
  4. Step 4: Simplify right side
    5,408.06x = 20,723,529.95
  5. Step 5: Solve for x
    x = 20,723,529.95/5,408.06
  6. Step 6: Final answer
    x = 3,831.97

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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.