Home / 1,961.38-2,704.49-1,429.32

Finding the Fourth Proportional to 1,961.38, 2,704.49 and 1,429.32

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Solution

The fourth proportional to 1,961.38, 2,704.49 and 1,429.32 is: 1,970.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.38 : 2,704.49 = 1,429.32 : x
  2. Step 2: Convert to fraction form
    1,961.38/2,704.49 = 1,429.32/x
  3. Step 3: Cross multiply
    1,961.38x = 2,704.49 × 1,429.32
  4. Step 4: Simplify right side
    1,961.38x = 3,865,593.21
  5. Step 5: Solve for x
    x = 3,865,593.21/1,961.38
  6. Step 6: Final answer
    x = 1,970.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.