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Finding the Fourth Proportional to 1,181.70, 1,773.46 and 834.29

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Solution

The fourth proportional to 1,181.70, 1,773.46 and 834.29 is: 1,252.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181.70 : 1,773.46 = 834.29 : x
  2. Step 2: Convert to fraction form
    1,181.70/1,773.46 = 834.29/x
  3. Step 3: Cross multiply
    1,181.70x = 1,773.46 × 834.29
  4. Step 4: Simplify right side
    1,181.70x = 1,479,579.94
  5. Step 5: Solve for x
    x = 1,479,579.94/1,181.70
  6. Step 6: Final answer
    x = 1,252.08

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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.