Home / 3,228.12-4,837.92-1,279.26

Finding the Fourth Proportional to 3,228.12, 4,837.92 and 1,279.26

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Solution

The fourth proportional to 3,228.12, 4,837.92 and 1,279.26 is: 1,917.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.12 : 4,837.92 = 1,279.26 : x
  2. Step 2: Convert to fraction form
    3,228.12/4,837.92 = 1,279.26/x
  3. Step 3: Cross multiply
    3,228.12x = 4,837.92 × 1,279.26
  4. Step 4: Simplify right side
    3,228.12x = 6,188,957.54
  5. Step 5: Solve for x
    x = 6,188,957.54/3,228.12
  6. Step 6: Final answer
    x = 1,917.20

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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.