Home / 1,949.13-2,923.79-488.30

Finding the Fourth Proportional to 1,949.13, 2,923.79 and 488.30

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Solution

The fourth proportional to 1,949.13, 2,923.79 and 488.30 is: 732.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.13 : 2,923.79 = 488.30 : x
  2. Step 2: Convert to fraction form
    1,949.13/2,923.79 = 488.30/x
  3. Step 3: Cross multiply
    1,949.13x = 2,923.79 × 488.30
  4. Step 4: Simplify right side
    1,949.13x = 1,427,669.60
  5. Step 5: Solve for x
    x = 1,427,669.60/1,949.13
  6. Step 6: Final answer
    x = 732.47

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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.