Home / 2,961.05-4,086.29-1,634.76

Finding the Fourth Proportional to 2,961.05, 4,086.29 and 1,634.76

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Solution

The fourth proportional to 2,961.05, 4,086.29 and 1,634.76 is: 2,255.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.05 : 4,086.29 = 1,634.76 : x
  2. Step 2: Convert to fraction form
    2,961.05/4,086.29 = 1,634.76/x
  3. Step 3: Cross multiply
    2,961.05x = 4,086.29 × 1,634.76
  4. Step 4: Simplify right side
    2,961.05x = 6,680,107.53
  5. Step 5: Solve for x
    x = 6,680,107.53/2,961.05
  6. Step 6: Final answer
    x = 2,255.99

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1.5x scale

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.