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Finding the Fourth Proportional to 2,773.17, 4,159.26 and 824.90

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Solution

The fourth proportional to 2,773.17, 4,159.26 and 824.90 is: 1,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.17 : 4,159.26 = 824.90 : x
  2. Step 2: Convert to fraction form
    2,773.17/4,159.26 = 824.90/x
  3. Step 3: Cross multiply
    2,773.17x = 4,159.26 × 824.90
  4. Step 4: Simplify right side
    2,773.17x = 3,430,952.78
  5. Step 5: Solve for x
    x = 3,430,952.78/2,773.17
  6. Step 6: Final answer
    x = 1,237.20

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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.