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Finding the Fourth Proportional to 2,773.65, 4,159.26 and 825.47

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Solution

The fourth proportional to 2,773.65, 4,159.26 and 825.47 is: 1,237.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.65 : 4,159.26 = 825.47 : x
  2. Step 2: Convert to fraction form
    2,773.65/4,159.26 = 825.47/x
  3. Step 3: Cross multiply
    2,773.65x = 4,159.26 × 825.47
  4. Step 4: Simplify right side
    2,773.65x = 3,433,323.56
  5. Step 5: Solve for x
    x = 3,433,323.56/2,773.65
  6. Step 6: Final answer
    x = 1,237.84

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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.