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Finding the Fourth Proportional to 1,830.13, 2,520.17 and 1,791.79

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Solution

The fourth proportional to 1,830.13, 2,520.17 and 1,791.79 is: 2,467.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,830.13 : 2,520.17 = 1,791.79 : x
  2. Step 2: Convert to fraction form
    1,830.13/2,520.17 = 1,791.79/x
  3. Step 3: Cross multiply
    1,830.13x = 2,520.17 × 1,791.79
  4. Step 4: Simplify right side
    1,830.13x = 4,515,606.45
  5. Step 5: Solve for x
    x = 4,515,606.45/1,830.13
  6. Step 6: Final answer
    x = 2,467.37

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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.