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Finding the Fourth Proportional to 1,166.95, 1,609.33 and 773.29

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Solution

The fourth proportional to 1,166.95, 1,609.33 and 773.29 is: 1,066.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.95 : 1,609.33 = 773.29 : x
  2. Step 2: Convert to fraction form
    1,166.95/1,609.33 = 773.29/x
  3. Step 3: Cross multiply
    1,166.95x = 1,609.33 × 773.29
  4. Step 4: Simplify right side
    1,166.95x = 1,244,478.80
  5. Step 5: Solve for x
    x = 1,244,478.80/1,166.95
  6. Step 6: Final answer
    x = 1,066.44

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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.