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Finding the Fourth Proportional to 1,166.76, 1,610.19 and 773.50

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Solution

The fourth proportional to 1,166.76, 1,610.19 and 773.50 is: 1,067.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.76 : 1,610.19 = 773.50 : x
  2. Step 2: Convert to fraction form
    1,166.76/1,610.19 = 773.50/x
  3. Step 3: Cross multiply
    1,166.76x = 1,610.19 × 773.50
  4. Step 4: Simplify right side
    1,166.76x = 1,245,481.97
  5. Step 5: Solve for x
    x = 1,245,481.97/1,166.76
  6. Step 6: Final answer
    x = 1,067.47

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1.5x scale

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.