Home / 1,660.68-2,493.18-1,086.12

Finding the Fourth Proportional to 1,660.68, 2,493.18 and 1,086.12

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Solution

The fourth proportional to 1,660.68, 2,493.18 and 1,086.12 is: 1,630.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.68 : 2,493.18 = 1,086.12 : x
  2. Step 2: Convert to fraction form
    1,660.68/2,493.18 = 1,086.12/x
  3. Step 3: Cross multiply
    1,660.68x = 2,493.18 × 1,086.12
  4. Step 4: Simplify right side
    1,660.68x = 2,707,892.66
  5. Step 5: Solve for x
    x = 2,707,892.66/1,660.68
  6. Step 6: Final answer
    x = 1,630.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.