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Finding the Fourth Proportional to 1,791.80, 2,472.26 and 1,045.34

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Solution

The fourth proportional to 1,791.80, 2,472.26 and 1,045.34 is: 1,442.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.80 : 2,472.26 = 1,045.34 : x
  2. Step 2: Convert to fraction form
    1,791.80/2,472.26 = 1,045.34/x
  3. Step 3: Cross multiply
    1,791.80x = 2,472.26 × 1,045.34
  4. Step 4: Simplify right side
    1,791.80x = 2,584,334.68
  5. Step 5: Solve for x
    x = 2,584,334.68/1,791.80
  6. Step 6: Final answer
    x = 1,442.31

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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.