Home / 5,451.70-8,179.73-2,491.54

Finding the Fourth Proportional to 5,451.70, 8,179.73 and 2,491.54

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Solution

The fourth proportional to 5,451.70, 8,179.73 and 2,491.54 is: 3,738.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.70 : 8,179.73 = 2,491.54 : x
  2. Step 2: Convert to fraction form
    5,451.70/8,179.73 = 2,491.54/x
  3. Step 3: Cross multiply
    5,451.70x = 8,179.73 × 2,491.54
  4. Step 4: Simplify right side
    5,451.70x = 20,380,124.48
  5. Step 5: Solve for x
    x = 20,380,124.48/5,451.70
  6. Step 6: Final answer
    x = 3,738.31

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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.