Home / 3,439.12-4,744.26-2,318.64

Finding the Fourth Proportional to 3,439.12, 4,744.26 and 2,318.64

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Solution

The fourth proportional to 3,439.12, 4,744.26 and 2,318.64 is: 3,198.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.12 : 4,744.26 = 2,318.64 : x
  2. Step 2: Convert to fraction form
    3,439.12/4,744.26 = 2,318.64/x
  3. Step 3: Cross multiply
    3,439.12x = 4,744.26 × 2,318.64
  4. Step 4: Simplify right side
    3,439.12x = 11,000,231.01
  5. Step 5: Solve for x
    x = 11,000,231.01/3,439.12
  6. Step 6: Final answer
    x = 3,198.56

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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.