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Finding the Fourth Proportional to 795.85, 1,193.13 and 487.64

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Solution

The fourth proportional to 795.85, 1,193.13 and 487.64 is: 731.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.85 : 1,193.13 = 487.64 : x
  2. Step 2: Convert to fraction form
    795.85/1,193.13 = 487.64/x
  3. Step 3: Cross multiply
    795.85x = 1,193.13 × 487.64
  4. Step 4: Simplify right side
    795.85x = 581,817.91
  5. Step 5: Solve for x
    x = 581,817.91/795.85
  6. Step 6: Final answer
    x = 731.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.