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Finding the Fourth Proportional to 1,772.81, 2,658.79 and 799.19

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Solution

The fourth proportional to 1,772.81, 2,658.79 and 799.19 is: 1,198.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.81 : 2,658.79 = 799.19 : x
  2. Step 2: Convert to fraction form
    1,772.81/2,658.79 = 799.19/x
  3. Step 3: Cross multiply
    1,772.81x = 2,658.79 × 799.19
  4. Step 4: Simplify right side
    1,772.81x = 2,124,878.38
  5. Step 5: Solve for x
    x = 2,124,878.38/1,772.81
  6. Step 6: Final answer
    x = 1,198.59

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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.