Home / 1,961.22-2,706.57-1,077.05

Finding the Fourth Proportional to 1,961.22, 2,706.57 and 1,077.05

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Solution

The fourth proportional to 1,961.22, 2,706.57 and 1,077.05 is: 1,486.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.22 : 2,706.57 = 1,077.05 : x
  2. Step 2: Convert to fraction form
    1,961.22/2,706.57 = 1,077.05/x
  3. Step 3: Cross multiply
    1,961.22x = 2,706.57 × 1,077.05
  4. Step 4: Simplify right side
    1,961.22x = 2,915,117.98
  5. Step 5: Solve for x
    x = 2,915,117.98/1,961.22
  6. Step 6: Final answer
    x = 1,486.38

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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.