Home / 5,815.90-8,025.82-3,163.38

Finding the Fourth Proportional to 5,815.90, 8,025.82 and 3,163.38

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Solution

The fourth proportional to 5,815.90, 8,025.82 and 3,163.38 is: 4,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.90 : 8,025.82 = 3,163.38 : x
  2. Step 2: Convert to fraction form
    5,815.90/8,025.82 = 3,163.38/x
  3. Step 3: Cross multiply
    5,815.90x = 8,025.82 × 3,163.38
  4. Step 4: Simplify right side
    5,815.90x = 25,388,718.47
  5. Step 5: Solve for x
    x = 25,388,718.47/5,815.90
  6. Step 6: Final answer
    x = 4,365.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.