Home / 1,791.08-2,471.80-1,192.54

Finding the Fourth Proportional to 1,791.08, 2,471.80 and 1,192.54

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Solution

The fourth proportional to 1,791.08, 2,471.80 and 1,192.54 is: 1,645.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.08 : 2,471.80 = 1,192.54 : x
  2. Step 2: Convert to fraction form
    1,791.08/2,471.80 = 1,192.54/x
  3. Step 3: Cross multiply
    1,791.08x = 2,471.80 × 1,192.54
  4. Step 4: Simplify right side
    1,791.08x = 2,947,718.08
  5. Step 5: Solve for x
    x = 2,947,718.08/1,791.08
  6. Step 6: Final answer
    x = 1,645.78

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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.