Home / 2,221.11-3,331.71-1,245.06

Finding the Fourth Proportional to 2,221.11, 3,331.71 and 1,245.06

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Solution

The fourth proportional to 2,221.11, 3,331.71 and 1,245.06 is: 1,867.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.11 : 3,331.71 = 1,245.06 : x
  2. Step 2: Convert to fraction form
    2,221.11/3,331.71 = 1,245.06/x
  3. Step 3: Cross multiply
    2,221.11x = 3,331.71 × 1,245.06
  4. Step 4: Simplify right side
    2,221.11x = 4,148,178.85
  5. Step 5: Solve for x
    x = 4,148,178.85/2,221.11
  6. Step 6: Final answer
    x = 1,867.62

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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.