Home / 5,485.97-8,212.80-3,399.27

Finding the Fourth Proportional to 5,485.97, 8,212.80 and 3,399.27

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Solution

The fourth proportional to 5,485.97, 8,212.80 and 3,399.27 is: 5,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.97 : 8,212.80 = 3,399.27 : x
  2. Step 2: Convert to fraction form
    5,485.97/8,212.80 = 3,399.27/x
  3. Step 3: Cross multiply
    5,485.97x = 8,212.80 × 3,399.27
  4. Step 4: Simplify right side
    5,485.97x = 27,917,537.40
  5. Step 5: Solve for x
    x = 27,917,537.40/5,485.97
  6. Step 6: Final answer
    x = 5,088.89

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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.