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Finding the Fourth Proportional to 796.87, 1,100.19 and 548.11

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Solution

The fourth proportional to 796.87, 1,100.19 and 548.11 is: 756.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.87 : 1,100.19 = 548.11 : x
  2. Step 2: Convert to fraction form
    796.87/1,100.19 = 548.11/x
  3. Step 3: Cross multiply
    796.87x = 1,100.19 × 548.11
  4. Step 4: Simplify right side
    796.87x = 603,025.14
  5. Step 5: Solve for x
    x = 603,025.14/796.87
  6. Step 6: Final answer
    x = 756.74

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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.