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Finding the Fourth Proportional to 1,791.55, 2,472.73 and 1,616.25

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Solution

The fourth proportional to 1,791.55, 2,472.73 and 1,616.25 is: 2,230.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.55 : 2,472.73 = 1,616.25 : x
  2. Step 2: Convert to fraction form
    1,791.55/2,472.73 = 1,616.25/x
  3. Step 3: Cross multiply
    1,791.55x = 2,472.73 × 1,616.25
  4. Step 4: Simplify right side
    1,791.55x = 3,996,555.09
  5. Step 5: Solve for x
    x = 3,996,555.09/1,791.55
  6. Step 6: Final answer
    x = 2,230.78

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1.5x scale

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.