Home / 4,965.20-7,447.54-2,191.12

Finding the Fourth Proportional to 4,965.20, 7,447.54 and 2,191.12

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Solution

The fourth proportional to 4,965.20, 7,447.54 and 2,191.12 is: 3,286.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,965.20 : 7,447.54 = 2,191.12 : x
  2. Step 2: Convert to fraction form
    4,965.20/7,447.54 = 2,191.12/x
  3. Step 3: Cross multiply
    4,965.20x = 7,447.54 × 2,191.12
  4. Step 4: Simplify right side
    4,965.20x = 16,318,453.84
  5. Step 5: Solve for x
    x = 16,318,453.84/4,965.20
  6. Step 6: Final answer
    x = 3,286.57

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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.