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Finding the Fourth Proportional to 535.68, 799.56 and 531.90

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Solution

The fourth proportional to 535.68, 799.56 and 531.90 is: 793.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.68 : 799.56 = 531.90 : x
  2. Step 2: Convert to fraction form
    535.68/799.56 = 531.90/x
  3. Step 3: Cross multiply
    535.68x = 799.56 × 531.90
  4. Step 4: Simplify right side
    535.68x = 425,285.96
  5. Step 5: Solve for x
    x = 425,285.96/535.68
  6. Step 6: Final answer
    x = 793.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.