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Finding the Fourth Proportional to 796.90, 1,100.15 and 535.36

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Solution

The fourth proportional to 796.90, 1,100.15 and 535.36 is: 739.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.90 : 1,100.15 = 535.36 : x
  2. Step 2: Convert to fraction form
    796.90/1,100.15 = 535.36/x
  3. Step 3: Cross multiply
    796.90x = 1,100.15 × 535.36
  4. Step 4: Simplify right side
    796.90x = 588,976.30
  5. Step 5: Solve for x
    x = 588,976.30/796.90
  6. Step 6: Final answer
    x = 739.08

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1.5x scale

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.