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Finding the Fourth Proportional to 1,163.25, 1,747.37 and 730.71

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Solution

The fourth proportional to 1,163.25, 1,747.37 and 730.71 is: 1,097.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.25 : 1,747.37 = 730.71 : x
  2. Step 2: Convert to fraction form
    1,163.25/1,747.37 = 730.71/x
  3. Step 3: Cross multiply
    1,163.25x = 1,747.37 × 730.71
  4. Step 4: Simplify right side
    1,163.25x = 1,276,820.73
  5. Step 5: Solve for x
    x = 1,276,820.73/1,163.25
  6. Step 6: Final answer
    x = 1,097.63

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1.5x scale

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.