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Finding the Fourth Proportional to 2,505.97, 3,758.81 and 657.05

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Solution

The fourth proportional to 2,505.97, 3,758.81 and 657.05 is: 985.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,505.97 : 3,758.81 = 657.05 : x
  2. Step 2: Convert to fraction form
    2,505.97/3,758.81 = 657.05/x
  3. Step 3: Cross multiply
    2,505.97x = 3,758.81 × 657.05
  4. Step 4: Simplify right side
    2,505.97x = 2,469,726.11
  5. Step 5: Solve for x
    x = 2,469,726.11/2,505.97
  6. Step 6: Final answer
    x = 985.54

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1.5x scale

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.