Home / 1,912.26-2,638.71-1,194.42

Finding the Fourth Proportional to 1,912.26, 2,638.71 and 1,194.42

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Solution

The fourth proportional to 1,912.26, 2,638.71 and 1,194.42 is: 1,648.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.26 : 2,638.71 = 1,194.42 : x
  2. Step 2: Convert to fraction form
    1,912.26/2,638.71 = 1,194.42/x
  3. Step 3: Cross multiply
    1,912.26x = 2,638.71 × 1,194.42
  4. Step 4: Simplify right side
    1,912.26x = 3,151,728.00
  5. Step 5: Solve for x
    x = 3,151,728.00/1,912.26
  6. Step 6: Final answer
    x = 1,648.17

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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.