Home / 6,860.42-10,286.78-2,179.55

Finding the Fourth Proportional to 6,860.42, 10,286.78 and 2,179.55

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Solution

The fourth proportional to 6,860.42, 10,286.78 and 2,179.55 is: 3,268.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.42 : 10,286.78 = 2,179.55 : x
  2. Step 2: Convert to fraction form
    6,860.42/10,286.78 = 2,179.55/x
  3. Step 3: Cross multiply
    6,860.42x = 10,286.78 × 2,179.55
  4. Step 4: Simplify right side
    6,860.42x = 22,420,540.45
  5. Step 5: Solve for x
    x = 22,420,540.45/6,860.42
  6. Step 6: Final answer
    x = 3,268.10

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1.5x scale

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.