Home / 2,961.50-4,086.87-1,635.21

Finding the Fourth Proportional to 2,961.50, 4,086.87 and 1,635.21

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Solution

The fourth proportional to 2,961.50, 4,086.87 and 1,635.21 is: 2,256.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.50 : 4,086.87 = 1,635.21 : x
  2. Step 2: Convert to fraction form
    2,961.50/4,086.87 = 1,635.21/x
  3. Step 3: Cross multiply
    2,961.50x = 4,086.87 × 1,635.21
  4. Step 4: Simplify right side
    2,961.50x = 6,682,882.52
  5. Step 5: Solve for x
    x = 6,682,882.52/2,961.50
  6. Step 6: Final answer
    x = 2,256.59

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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.