Home / 5,545.31-8,318.97-2,121.94

Finding the Fourth Proportional to 5,545.31, 8,318.97 and 2,121.94

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Solution

The fourth proportional to 5,545.31, 8,318.97 and 2,121.94 is: 3,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,545.31 : 8,318.97 = 2,121.94 : x
  2. Step 2: Convert to fraction form
    5,545.31/8,318.97 = 2,121.94/x
  3. Step 3: Cross multiply
    5,545.31x = 8,318.97 × 2,121.94
  4. Step 4: Simplify right side
    5,545.31x = 17,652,365.60
  5. Step 5: Solve for x
    x = 17,652,365.60/5,545.31
  6. Step 6: Final answer
    x = 3,183.30

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1.5x scale

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.