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Finding the Fourth Proportional to 796.83, 1,097.24 and 630.51

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Solution

The fourth proportional to 796.83, 1,097.24 and 630.51 is: 868.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.83 : 1,097.24 = 630.51 : x
  2. Step 2: Convert to fraction form
    796.83/1,097.24 = 630.51/x
  3. Step 3: Cross multiply
    796.83x = 1,097.24 × 630.51
  4. Step 4: Simplify right side
    796.83x = 691,817.64
  5. Step 5: Solve for x
    x = 691,817.64/796.83
  6. Step 6: Final answer
    x = 868.21

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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.