Home / 1,791.29-2,686.71-1,135.19

Finding the Fourth Proportional to 1,791.29, 2,686.71 and 1,135.19

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Solution

The fourth proportional to 1,791.29, 2,686.71 and 1,135.19 is: 1,702.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.29 : 2,686.71 = 1,135.19 : x
  2. Step 2: Convert to fraction form
    1,791.29/2,686.71 = 1,135.19/x
  3. Step 3: Cross multiply
    1,791.29x = 2,686.71 × 1,135.19
  4. Step 4: Simplify right side
    1,791.29x = 3,049,912.89
  5. Step 5: Solve for x
    x = 3,049,912.89/1,791.29
  6. Step 6: Final answer
    x = 1,702.64

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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.