Home / 5,815.39-8,025.25-3,162.80

Finding the Fourth Proportional to 5,815.39, 8,025.25 and 3,162.80

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Solution

The fourth proportional to 5,815.39, 8,025.25 and 3,162.80 is: 4,364.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.39 : 8,025.25 = 3,162.80 : x
  2. Step 2: Convert to fraction form
    5,815.39/8,025.25 = 3,162.80/x
  3. Step 3: Cross multiply
    5,815.39x = 8,025.25 × 3,162.80
  4. Step 4: Simplify right side
    5,815.39x = 25,382,222.53
  5. Step 5: Solve for x
    x = 25,382,222.53/5,815.39
  6. Step 6: Final answer
    x = 4,364.66

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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.