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Finding the Fourth Proportional to 1,753.14, 2,629.37 and 657.27

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Solution

The fourth proportional to 1,753.14, 2,629.37 and 657.27 is: 985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.14 : 2,629.37 = 657.27 : x
  2. Step 2: Convert to fraction form
    1,753.14/2,629.37 = 657.27/x
  3. Step 3: Cross multiply
    1,753.14x = 2,629.37 × 657.27
  4. Step 4: Simplify right side
    1,753.14x = 1,728,206.02
  5. Step 5: Solve for x
    x = 1,728,206.02/1,753.14
  6. Step 6: Final answer
    x = 985.78

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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.