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Finding the Fourth Proportional to 835.29, 1,253.43 and 793.08

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Solution

The fourth proportional to 835.29, 1,253.43 and 793.08 is: 1,190.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.29 : 1,253.43 = 793.08 : x
  2. Step 2: Convert to fraction form
    835.29/1,253.43 = 793.08/x
  3. Step 3: Cross multiply
    835.29x = 1,253.43 × 793.08
  4. Step 4: Simplify right side
    835.29x = 994,070.26
  5. Step 5: Solve for x
    x = 994,070.26/835.29
  6. Step 6: Final answer
    x = 1,190.09

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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.