Home / 1,977.62-2,961.39-1,244.66

Finding the Fourth Proportional to 1,977.62, 2,961.39 and 1,244.66

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Solution

The fourth proportional to 1,977.62, 2,961.39 and 1,244.66 is: 1,863.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.62 : 2,961.39 = 1,244.66 : x
  2. Step 2: Convert to fraction form
    1,977.62/2,961.39 = 1,244.66/x
  3. Step 3: Cross multiply
    1,977.62x = 2,961.39 × 1,244.66
  4. Step 4: Simplify right side
    1,977.62x = 3,685,923.68
  5. Step 5: Solve for x
    x = 3,685,923.68/1,977.62
  6. Step 6: Final answer
    x = 1,863.82

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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.