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Finding the Fourth Proportional to 1,269.06, 1,750.68 and 796.72

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Solution

The fourth proportional to 1,269.06, 1,750.68 and 796.72 is: 1,099.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269.06 : 1,750.68 = 796.72 : x
  2. Step 2: Convert to fraction form
    1,269.06/1,750.68 = 796.72/x
  3. Step 3: Cross multiply
    1,269.06x = 1,750.68 × 796.72
  4. Step 4: Simplify right side
    1,269.06x = 1,394,801.77
  5. Step 5: Solve for x
    x = 1,394,801.77/1,269.06
  6. Step 6: Final answer
    x = 1,099.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.