Home / 1,961.46-2,706.81-1,077.27

Finding the Fourth Proportional to 1,961.46, 2,706.81 and 1,077.27

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Solution

The fourth proportional to 1,961.46, 2,706.81 and 1,077.27 is: 1,486.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.46 : 2,706.81 = 1,077.27 : x
  2. Step 2: Convert to fraction form
    1,961.46/2,706.81 = 1,077.27/x
  3. Step 3: Cross multiply
    1,961.46x = 2,706.81 × 1,077.27
  4. Step 4: Simplify right side
    1,961.46x = 2,915,965.21
  5. Step 5: Solve for x
    x = 2,915,965.21/1,961.46
  6. Step 6: Final answer
    x = 1,486.63

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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.