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Finding the Fourth Proportional to 795.29, 1,188.22 and 768.03

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Solution

The fourth proportional to 795.29, 1,188.22 and 768.03 is: 1,147.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.29 : 1,188.22 = 768.03 : x
  2. Step 2: Convert to fraction form
    795.29/1,188.22 = 768.03/x
  3. Step 3: Cross multiply
    795.29x = 1,188.22 × 768.03
  4. Step 4: Simplify right side
    795.29x = 912,584.77
  5. Step 5: Solve for x
    x = 912,584.77/795.29
  6. Step 6: Final answer
    x = 1,147.49

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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.