Home / 2,187.99-3,277.89-1,091.07

Finding the Fourth Proportional to 2,187.99, 3,277.89 and 1,091.07

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Solution

The fourth proportional to 2,187.99, 3,277.89 and 1,091.07 is: 1,634.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.99 : 3,277.89 = 1,091.07 : x
  2. Step 2: Convert to fraction form
    2,187.99/3,277.89 = 1,091.07/x
  3. Step 3: Cross multiply
    2,187.99x = 3,277.89 × 1,091.07
  4. Step 4: Simplify right side
    2,187.99x = 3,576,407.44
  5. Step 5: Solve for x
    x = 3,576,407.44/2,187.99
  6. Step 6: Final answer
    x = 1,634.56

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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.