Home / 5,378.43-8,067.60-3,185.58

Finding the Fourth Proportional to 5,378.43, 8,067.60 and 3,185.58

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Solution

The fourth proportional to 5,378.43, 8,067.60 and 3,185.58 is: 4,778.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.43 : 8,067.60 = 3,185.58 : x
  2. Step 2: Convert to fraction form
    5,378.43/8,067.60 = 3,185.58/x
  3. Step 3: Cross multiply
    5,378.43x = 8,067.60 × 3,185.58
  4. Step 4: Simplify right side
    5,378.43x = 25,699,970.08
  5. Step 5: Solve for x
    x = 25,699,970.08/5,378.43
  6. Step 6: Final answer
    x = 4,778.34

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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.