Home / 5,443.28-8,178.60-3,469.79

Finding the Fourth Proportional to 5,443.28, 8,178.60 and 3,469.79

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Solution

The fourth proportional to 5,443.28, 8,178.60 and 3,469.79 is: 5,213.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,443.28 : 8,178.60 = 3,469.79 : x
  2. Step 2: Convert to fraction form
    5,443.28/8,178.60 = 3,469.79/x
  3. Step 3: Cross multiply
    5,443.28x = 8,178.60 × 3,469.79
  4. Step 4: Simplify right side
    5,443.28x = 28,378,024.49
  5. Step 5: Solve for x
    x = 28,378,024.49/5,443.28
  6. Step 6: Final answer
    x = 5,213.41

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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.