Home / 3,112.08-4,296.84-1,933.68

Finding the Fourth Proportional to 3,112.08, 4,296.84 and 1,933.68

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Solution

The fourth proportional to 3,112.08, 4,296.84 and 1,933.68 is: 2,669.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.08 : 4,296.84 = 1,933.68 : x
  2. Step 2: Convert to fraction form
    3,112.08/4,296.84 = 1,933.68/x
  3. Step 3: Cross multiply
    3,112.08x = 4,296.84 × 1,933.68
  4. Step 4: Simplify right side
    3,112.08x = 8,308,713.57
  5. Step 5: Solve for x
    x = 8,308,713.57/3,112.08
  6. Step 6: Final answer
    x = 2,669.83

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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.