Home / 5,081.36-7,012.22-2,843.20

Finding the Fourth Proportional to 5,081.36, 7,012.22 and 2,843.20

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Solution

The fourth proportional to 5,081.36, 7,012.22 and 2,843.20 is: 3,923.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.36 : 7,012.22 = 2,843.20 : x
  2. Step 2: Convert to fraction form
    5,081.36/7,012.22 = 2,843.20/x
  3. Step 3: Cross multiply
    5,081.36x = 7,012.22 × 2,843.20
  4. Step 4: Simplify right side
    5,081.36x = 19,937,143.90
  5. Step 5: Solve for x
    x = 19,937,143.90/5,081.36
  6. Step 6: Final answer
    x = 3,923.58

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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.