Home / 2,221.11-3,065.08-1,226.43

Finding the Fourth Proportional to 2,221.11, 3,065.08 and 1,226.43

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Solution

The fourth proportional to 2,221.11, 3,065.08 and 1,226.43 is: 1,692.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.11 : 3,065.08 = 1,226.43 : x
  2. Step 2: Convert to fraction form
    2,221.11/3,065.08 = 1,226.43/x
  3. Step 3: Cross multiply
    2,221.11x = 3,065.08 × 1,226.43
  4. Step 4: Simplify right side
    2,221.11x = 3,759,106.06
  5. Step 5: Solve for x
    x = 3,759,106.06/2,221.11
  6. Step 6: Final answer
    x = 1,692.44

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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.