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Finding the Fourth Proportional to 801.96, 1,114.27 and 793.40

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Solution

The fourth proportional to 801.96, 1,114.27 and 793.40 is: 1,102.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    801.96 : 1,114.27 = 793.40 : x
  2. Step 2: Convert to fraction form
    801.96/1,114.27 = 793.40/x
  3. Step 3: Cross multiply
    801.96x = 1,114.27 × 793.40
  4. Step 4: Simplify right side
    801.96x = 884,061.82
  5. Step 5: Solve for x
    x = 884,061.82/801.96
  6. Step 6: Final answer
    x = 1,102.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.