Home / 1,927.82-2,658.75-1,229.42

Finding the Fourth Proportional to 1,927.82, 2,658.75 and 1,229.42

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Solution

The fourth proportional to 1,927.82, 2,658.75 and 1,229.42 is: 1,695.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.82 : 2,658.75 = 1,229.42 : x
  2. Step 2: Convert to fraction form
    1,927.82/2,658.75 = 1,229.42/x
  3. Step 3: Cross multiply
    1,927.82x = 2,658.75 × 1,229.42
  4. Step 4: Simplify right side
    1,927.82x = 3,268,720.43
  5. Step 5: Solve for x
    x = 3,268,720.43/1,927.82
  6. Step 6: Final answer
    x = 1,695.55

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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.