Home / 2,961.12-4,086.30-1,634.79

Finding the Fourth Proportional to 2,961.12, 4,086.30 and 1,634.79

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Solution

The fourth proportional to 2,961.12, 4,086.30 and 1,634.79 is: 2,255.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.12 : 4,086.30 = 1,634.79 : x
  2. Step 2: Convert to fraction form
    2,961.12/4,086.30 = 1,634.79/x
  3. Step 3: Cross multiply
    2,961.12x = 4,086.30 × 1,634.79
  4. Step 4: Simplify right side
    2,961.12x = 6,680,242.38
  5. Step 5: Solve for x
    x = 6,680,242.38/2,961.12
  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.