Home / 1,933.66-2,912.65-1,908.15

Finding the Fourth Proportional to 1,933.66, 2,912.65 and 1,908.15

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Solution

The fourth proportional to 1,933.66, 2,912.65 and 1,908.15 is: 2,874.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.66 : 2,912.65 = 1,908.15 : x
  2. Step 2: Convert to fraction form
    1,933.66/2,912.65 = 1,908.15/x
  3. Step 3: Cross multiply
    1,933.66x = 2,912.65 × 1,908.15
  4. Step 4: Simplify right side
    1,933.66x = 5,557,773.10
  5. Step 5: Solve for x
    x = 5,557,773.10/1,933.66
  6. Step 6: Final answer
    x = 2,874.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.