Home / 1,961.73-2,707.07-1,122.44

Finding the Fourth Proportional to 1,961.73, 2,707.07 and 1,122.44

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Solution

The fourth proportional to 1,961.73, 2,707.07 and 1,122.44 is: 1,548.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.73 : 2,707.07 = 1,122.44 : x
  2. Step 2: Convert to fraction form
    1,961.73/2,707.07 = 1,122.44/x
  3. Step 3: Cross multiply
    1,961.73x = 2,707.07 × 1,122.44
  4. Step 4: Simplify right side
    1,961.73x = 3,038,504.50
  5. Step 5: Solve for x
    x = 3,038,504.50/1,961.73
  6. Step 6: Final answer
    x = 1,548.89

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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.