Home / 1,286.46-1,926.99-1,092.33

Finding the Fourth Proportional to 1,286.46, 1,926.99 and 1,092.33

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Solution

The fourth proportional to 1,286.46, 1,926.99 and 1,092.33 is: 1,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286.46 : 1,926.99 = 1,092.33 : x
  2. Step 2: Convert to fraction form
    1,286.46/1,926.99 = 1,092.33/x
  3. Step 3: Cross multiply
    1,286.46x = 1,926.99 × 1,092.33
  4. Step 4: Simplify right side
    1,286.46x = 2,104,908.99
  5. Step 5: Solve for x
    x = 2,104,908.99/1,286.46
  6. Step 6: Final answer
    x = 1,636.20

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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.