Home / 5,815.76-8,025.80-3,163.19

Finding the Fourth Proportional to 5,815.76, 8,025.80 and 3,163.19

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Solution

The fourth proportional to 5,815.76, 8,025.80 and 3,163.19 is: 4,365.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.76 : 8,025.80 = 3,163.19 : x
  2. Step 2: Convert to fraction form
    5,815.76/8,025.80 = 3,163.19/x
  3. Step 3: Cross multiply
    5,815.76x = 8,025.80 × 3,163.19
  4. Step 4: Simplify right side
    5,815.76x = 25,387,074.36
  5. Step 5: Solve for x
    x = 25,387,074.36/5,815.76
  6. Step 6: Final answer
    x = 4,365.22

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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.