Home / 1,791.18-2,681.91-1,645.38

Finding the Fourth Proportional to 1,791.18, 2,681.91 and 1,645.38

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Solution

The fourth proportional to 1,791.18, 2,681.91 and 1,645.38 is: 2,463.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.18 : 2,681.91 = 1,645.38 : x
  2. Step 2: Convert to fraction form
    1,791.18/2,681.91 = 1,645.38/x
  3. Step 3: Cross multiply
    1,791.18x = 2,681.91 × 1,645.38
  4. Step 4: Simplify right side
    1,791.18x = 4,412,761.08
  5. Step 5: Solve for x
    x = 4,412,761.08/1,791.18
  6. Step 6: Final answer
    x = 2,463.61

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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.