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Finding the Fourth Proportional to 793.17, 1,093.20 and 682.20

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Solution

The fourth proportional to 793.17, 1,093.20 and 682.20 is: 940.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.17 : 1,093.20 = 682.20 : x
  2. Step 2: Convert to fraction form
    793.17/1,093.20 = 682.20/x
  3. Step 3: Cross multiply
    793.17x = 1,093.20 × 682.20
  4. Step 4: Simplify right side
    793.17x = 745,781.04
  5. Step 5: Solve for x
    x = 745,781.04/793.17
  6. Step 6: Final answer
    x = 940.25

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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.