Home / 5,385.90-8,067.81-3,189.27

Finding the Fourth Proportional to 5,385.90, 8,067.81 and 3,189.27

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Solution

The fourth proportional to 5,385.90, 8,067.81 and 3,189.27 is: 4,777.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.90 : 8,067.81 = 3,189.27 : x
  2. Step 2: Convert to fraction form
    5,385.90/8,067.81 = 3,189.27/x
  3. Step 3: Cross multiply
    5,385.90x = 8,067.81 × 3,189.27
  4. Step 4: Simplify right side
    5,385.90x = 25,730,424.40
  5. Step 5: Solve for x
    x = 25,730,424.40/5,385.90
  6. Step 6: Final answer
    x = 4,777.37

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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.