Home / 1,961.08-2,705.94-1,214.44

Finding the Fourth Proportional to 1,961.08, 2,705.94 and 1,214.44

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Solution

The fourth proportional to 1,961.08, 2,705.94 and 1,214.44 is: 1,675.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.08 : 2,705.94 = 1,214.44 : x
  2. Step 2: Convert to fraction form
    1,961.08/2,705.94 = 1,214.44/x
  3. Step 3: Cross multiply
    1,961.08x = 2,705.94 × 1,214.44
  4. Step 4: Simplify right side
    1,961.08x = 3,286,201.77
  5. Step 5: Solve for x
    x = 3,286,201.77/1,961.08
  6. Step 6: Final answer
    x = 1,675.71

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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.