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Finding the Fourth Proportional to 3,155.82, 4,734.41 and 964.48

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Solution

The fourth proportional to 3,155.82, 4,734.41 and 964.48 is: 1,446.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.82 : 4,734.41 = 964.48 : x
  2. Step 2: Convert to fraction form
    3,155.82/4,734.41 = 964.48/x
  3. Step 3: Cross multiply
    3,155.82x = 4,734.41 × 964.48
  4. Step 4: Simplify right side
    3,155.82x = 4,566,243.76
  5. Step 5: Solve for x
    x = 4,566,243.76/3,155.82
  6. Step 6: Final answer
    x = 1,446.93

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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.