Home / 5,371.41-8,049.83-3,989.96

Finding the Fourth Proportional to 5,371.41, 8,049.83 and 3,989.96

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Solution

The fourth proportional to 5,371.41, 8,049.83 and 3,989.96 is: 5,979.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.41 : 8,049.83 = 3,989.96 : x
  2. Step 2: Convert to fraction form
    5,371.41/8,049.83 = 3,989.96/x
  3. Step 3: Cross multiply
    5,371.41x = 8,049.83 × 3,989.96
  4. Step 4: Simplify right side
    5,371.41x = 32,118,439.51
  5. Step 5: Solve for x
    x = 32,118,439.51/5,371.41
  6. Step 6: Final answer
    x = 5,979.52

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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.