Home / 2,221.18-3,065.28-1,226.44

Finding the Fourth Proportional to 2,221.18, 3,065.28 and 1,226.44

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Solution

The fourth proportional to 2,221.18, 3,065.28 and 1,226.44 is: 1,692.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.18 : 3,065.28 = 1,226.44 : x
  2. Step 2: Convert to fraction form
    2,221.18/3,065.28 = 1,226.44/x
  3. Step 3: Cross multiply
    2,221.18x = 3,065.28 × 1,226.44
  4. Step 4: Simplify right side
    2,221.18x = 3,759,382.00
  5. Step 5: Solve for x
    x = 3,759,382.00/2,221.18
  6. Step 6: Final answer
    x = 1,692.52

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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.