Home / 4,212.30-6,306.30-3,993.60

Finding the Fourth Proportional to 4,212.30, 6,306.30 and 3,993.60

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Solution

The fourth proportional to 4,212.30, 6,306.30 and 3,993.60 is: 5,978.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.30 : 6,306.30 = 3,993.60 : x
  2. Step 2: Convert to fraction form
    4,212.30/6,306.30 = 3,993.60/x
  3. Step 3: Cross multiply
    4,212.30x = 6,306.30 × 3,993.60
  4. Step 4: Simplify right side
    4,212.30x = 25,184,839.68
  5. Step 5: Solve for x
    x = 25,184,839.68/4,212.30
  6. Step 6: Final answer
    x = 5,978.88

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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.