Home / 1,791.24-2,686.98-1,020.12

Finding the Fourth Proportional to 1,791.24, 2,686.98 and 1,020.12

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Solution

The fourth proportional to 1,791.24, 2,686.98 and 1,020.12 is: 1,530.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.24 : 2,686.98 = 1,020.12 : x
  2. Step 2: Convert to fraction form
    1,791.24/2,686.98 = 1,020.12/x
  3. Step 3: Cross multiply
    1,791.24x = 2,686.98 × 1,020.12
  4. Step 4: Simplify right side
    1,791.24x = 2,741,042.04
  5. Step 5: Solve for x
    x = 2,741,042.04/1,791.24
  6. Step 6: Final answer
    x = 1,530.25

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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.