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Finding the Fourth Proportional to 1,772.65, 2,658.98 and 797.62

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Solution

The fourth proportional to 1,772.65, 2,658.98 and 797.62 is: 1,196.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.65 : 2,658.98 = 797.62 : x
  2. Step 2: Convert to fraction form
    1,772.65/2,658.98 = 797.62/x
  3. Step 3: Cross multiply
    1,772.65x = 2,658.98 × 797.62
  4. Step 4: Simplify right side
    1,772.65x = 2,120,840.34
  5. Step 5: Solve for x
    x = 2,120,840.34/1,772.65
  6. Step 6: Final answer
    x = 1,196.42

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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.