Home / 5,408.20-8,096.10-3,215.80

Finding the Fourth Proportional to 5,408.20, 8,096.10 and 3,215.80

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Solution

The fourth proportional to 5,408.20, 8,096.10 and 3,215.80 is: 4,814.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.20 : 8,096.10 = 3,215.80 : x
  2. Step 2: Convert to fraction form
    5,408.20/8,096.10 = 3,215.80/x
  3. Step 3: Cross multiply
    5,408.20x = 8,096.10 × 3,215.80
  4. Step 4: Simplify right side
    5,408.20x = 26,035,438.38
  5. Step 5: Solve for x
    x = 26,035,438.38/5,408.20
  6. Step 6: Final answer
    x = 4,814.07

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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.