Home / 5,081.60-7,012.92-2,843.74

Finding the Fourth Proportional to 5,081.60, 7,012.92 and 2,843.74

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Solution

The fourth proportional to 5,081.60, 7,012.92 and 2,843.74 is: 3,924.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.60 : 7,012.92 = 2,843.74 : x
  2. Step 2: Convert to fraction form
    5,081.60/7,012.92 = 2,843.74/x
  3. Step 3: Cross multiply
    5,081.60x = 7,012.92 × 2,843.74
  4. Step 4: Simplify right side
    5,081.60x = 19,942,921.12
  5. Step 5: Solve for x
    x = 19,942,921.12/5,081.60
  6. Step 6: Final answer
    x = 3,924.54

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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.