Home / 1,286.17-1,927.62-1,072.33

Finding the Fourth Proportional to 1,286.17, 1,927.62 and 1,072.33

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Solution

The fourth proportional to 1,286.17, 1,927.62 and 1,072.33 is: 1,607.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286.17 : 1,927.62 = 1,072.33 : x
  2. Step 2: Convert to fraction form
    1,286.17/1,927.62 = 1,072.33/x
  3. Step 3: Cross multiply
    1,286.17x = 1,927.62 × 1,072.33
  4. Step 4: Simplify right side
    1,286.17x = 2,067,044.75
  5. Step 5: Solve for x
    x = 2,067,044.75/1,286.17
  6. Step 6: Final answer
    x = 1,607.13

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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.