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Finding the Fourth Proportional to 2,773.16, 4,159.38 and 825.56

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Solution

The fourth proportional to 2,773.16, 4,159.38 and 825.56 is: 1,238.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.16 : 4,159.38 = 825.56 : x
  2. Step 2: Convert to fraction form
    2,773.16/4,159.38 = 825.56/x
  3. Step 3: Cross multiply
    2,773.16x = 4,159.38 × 825.56
  4. Step 4: Simplify right side
    2,773.16x = 3,433,817.75
  5. Step 5: Solve for x
    x = 3,433,817.75/2,773.16
  6. Step 6: Final answer
    x = 1,238.23

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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.