Home / 3,144.60-4,338.90-2,399.40

Finding the Fourth Proportional to 3,144.60, 4,338.90 and 2,399.40

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Solution

The fourth proportional to 3,144.60, 4,338.90 and 2,399.40 is: 3,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.60 : 4,338.90 = 2,399.40 : x
  2. Step 2: Convert to fraction form
    3,144.60/4,338.90 = 2,399.40/x
  3. Step 3: Cross multiply
    3,144.60x = 4,338.90 × 2,399.40
  4. Step 4: Simplify right side
    3,144.60x = 10,410,756.66
  5. Step 5: Solve for x
    x = 10,410,756.66/3,144.60
  6. Step 6: Final answer
    x = 3,310.68

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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.