Home / 3,112.39-4,289.18-2,226.66

Finding the Fourth Proportional to 3,112.39, 4,289.18 and 2,226.66

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Solution

The fourth proportional to 3,112.39, 4,289.18 and 2,226.66 is: 3,068.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.39 : 4,289.18 = 2,226.66 : x
  2. Step 2: Convert to fraction form
    3,112.39/4,289.18 = 2,226.66/x
  3. Step 3: Cross multiply
    3,112.39x = 4,289.18 × 2,226.66
  4. Step 4: Simplify right side
    3,112.39x = 9,550,545.54
  5. Step 5: Solve for x
    x = 9,550,545.54/3,112.39
  6. Step 6: Final answer
    x = 3,068.56

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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.