Home / 5,408.76-8,109.48-4,351.70

Finding the Fourth Proportional to 5,408.76, 8,109.48 and 4,351.70

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Solution

The fourth proportional to 5,408.76, 8,109.48 and 4,351.70 is: 6,524.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.76 : 8,109.48 = 4,351.70 : x
  2. Step 2: Convert to fraction form
    5,408.76/8,109.48 = 4,351.70/x
  3. Step 3: Cross multiply
    5,408.76x = 8,109.48 × 4,351.70
  4. Step 4: Simplify right side
    5,408.76x = 35,290,024.12
  5. Step 5: Solve for x
    x = 35,290,024.12/5,408.76
  6. Step 6: Final answer
    x = 6,524.61

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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.