Home / 5,081.20-7,012.20-2,843.16

Finding the Fourth Proportional to 5,081.20, 7,012.20 and 2,843.16

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Solution

The fourth proportional to 5,081.20, 7,012.20 and 2,843.16 is: 3,923.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.20 : 7,012.20 = 2,843.16 : x
  2. Step 2: Convert to fraction form
    5,081.20/7,012.20 = 2,843.16/x
  3. Step 3: Cross multiply
    5,081.20x = 7,012.20 × 2,843.16
  4. Step 4: Simplify right side
    5,081.20x = 19,936,806.55
  5. Step 5: Solve for x
    x = 19,936,806.55/5,081.20
  6. Step 6: Final answer
    x = 3,923.64

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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.