Home / 1,966.46-2,713.20-1,115.73

Finding the Fourth Proportional to 1,966.46, 2,713.20 and 1,115.73

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Solution

The fourth proportional to 1,966.46, 2,713.20 and 1,115.73 is: 1,539.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.46 : 2,713.20 = 1,115.73 : x
  2. Step 2: Convert to fraction form
    1,966.46/2,713.20 = 1,115.73/x
  3. Step 3: Cross multiply
    1,966.46x = 2,713.20 × 1,115.73
  4. Step 4: Simplify right side
    1,966.46x = 3,027,198.64
  5. Step 5: Solve for x
    x = 3,027,198.64/1,966.46
  6. Step 6: Final answer
    x = 1,539.42

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1.5x scale

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.