Home / 4,251.20-6,381.60-3,281.60

Finding the Fourth Proportional to 4,251.20, 6,381.60 and 3,281.60

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Solution

The fourth proportional to 4,251.20, 6,381.60 and 3,281.60 is: 4,926.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.20 : 6,381.60 = 3,281.60 : x
  2. Step 2: Convert to fraction form
    4,251.20/6,381.60 = 3,281.60/x
  3. Step 3: Cross multiply
    4,251.20x = 6,381.60 × 3,281.60
  4. Step 4: Simplify right side
    4,251.20x = 20,941,858.56
  5. Step 5: Solve for x
    x = 20,941,858.56/4,251.20
  6. Step 6: Final answer
    x = 4,926.11

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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.