Home / 3,320.38-4,977.69-1,949.50

Finding the Fourth Proportional to 3,320.38, 4,977.69 and 1,949.50

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Solution

The fourth proportional to 3,320.38, 4,977.69 and 1,949.50 is: 2,922.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.38 : 4,977.69 = 1,949.50 : x
  2. Step 2: Convert to fraction form
    3,320.38/4,977.69 = 1,949.50/x
  3. Step 3: Cross multiply
    3,320.38x = 4,977.69 × 1,949.50
  4. Step 4: Simplify right side
    3,320.38x = 9,704,006.66
  5. Step 5: Solve for x
    x = 9,704,006.66/3,320.38
  6. Step 6: Final answer
    x = 2,922.56

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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.