Home / 1,961.00-2,708.30-1,216.73

Finding the Fourth Proportional to 1,961.00, 2,708.30 and 1,216.73

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Solution

The fourth proportional to 1,961.00, 2,708.30 and 1,216.73 is: 1,680.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.00 : 2,708.30 = 1,216.73 : x
  2. Step 2: Convert to fraction form
    1,961.00/2,708.30 = 1,216.73/x
  3. Step 3: Cross multiply
    1,961.00x = 2,708.30 × 1,216.73
  4. Step 4: Simplify right side
    1,961.00x = 3,295,279.67
  5. Step 5: Solve for x
    x = 3,295,279.67/1,961.00
  6. Step 6: Final answer
    x = 1,680.41

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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.