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Finding the Fourth Proportional to 1,949.22, 2,923.80 and 488.37

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Solution

The fourth proportional to 1,949.22, 2,923.80 and 488.37 is: 732.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.22 : 2,923.80 = 488.37 : x
  2. Step 2: Convert to fraction form
    1,949.22/2,923.80 = 488.37/x
  3. Step 3: Cross multiply
    1,949.22x = 2,923.80 × 488.37
  4. Step 4: Simplify right side
    1,949.22x = 1,427,896.21
  5. Step 5: Solve for x
    x = 1,427,896.21/1,949.22
  6. Step 6: Final answer
    x = 732.55

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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.