Home / 5,450.56-8,171.71-2,815.22

Finding the Fourth Proportional to 5,450.56, 8,171.71 and 2,815.22

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Solution

The fourth proportional to 5,450.56, 8,171.71 and 2,815.22 is: 4,220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.56 : 8,171.71 = 2,815.22 : x
  2. Step 2: Convert to fraction form
    5,450.56/8,171.71 = 2,815.22/x
  3. Step 3: Cross multiply
    5,450.56x = 8,171.71 × 2,815.22
  4. Step 4: Simplify right side
    5,450.56x = 23,005,174.82
  5. Step 5: Solve for x
    x = 23,005,174.82/5,450.56
  6. Step 6: Final answer
    x = 4,220.70

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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.