Home / 5,408.45-8,108.57-2,287.87

Finding the Fourth Proportional to 5,408.45, 8,108.57 and 2,287.87

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Solution

The fourth proportional to 5,408.45, 8,108.57 and 2,287.87 is: 3,430.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.45 : 8,108.57 = 2,287.87 : x
  2. Step 2: Convert to fraction form
    5,408.45/8,108.57 = 2,287.87/x
  3. Step 3: Cross multiply
    5,408.45x = 8,108.57 × 2,287.87
  4. Step 4: Simplify right side
    5,408.45x = 18,551,354.05
  5. Step 5: Solve for x
    x = 18,551,354.05/5,408.45
  6. Step 6: Final answer
    x = 3,430.07

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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.