Home / 5,388.12-8,076.24-2,099.52

Finding the Fourth Proportional to 5,388.12, 8,076.24 and 2,099.52

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Solution

The fourth proportional to 5,388.12, 8,076.24 and 2,099.52 is: 3,146.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.12 : 8,076.24 = 2,099.52 : x
  2. Step 2: Convert to fraction form
    5,388.12/8,076.24 = 2,099.52/x
  3. Step 3: Cross multiply
    5,388.12x = 8,076.24 × 2,099.52
  4. Step 4: Simplify right side
    5,388.12x = 16,956,227.40
  5. Step 5: Solve for x
    x = 16,956,227.40/5,388.12
  6. Step 6: Final answer
    x = 3,146.97

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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.