Home / 4,790.80-7,183.74-2,191.50

Finding the Fourth Proportional to 4,790.80, 7,183.74 and 2,191.50

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Solution

The fourth proportional to 4,790.80, 7,183.74 and 2,191.50 is: 3,286.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,790.80 : 7,183.74 = 2,191.50 : x
  2. Step 2: Convert to fraction form
    4,790.80/7,183.74 = 2,191.50/x
  3. Step 3: Cross multiply
    4,790.80x = 7,183.74 × 2,191.50
  4. Step 4: Simplify right side
    4,790.80x = 15,743,166.21
  5. Step 5: Solve for x
    x = 15,743,166.21/4,790.80
  6. Step 6: Final answer
    x = 3,286.12

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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.