Home / 3,511.66-4,845.94-1,939.72

Finding the Fourth Proportional to 3,511.66, 4,845.94 and 1,939.72

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Solution

The fourth proportional to 3,511.66, 4,845.94 and 1,939.72 is: 2,676.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.66 : 4,845.94 = 1,939.72 : x
  2. Step 2: Convert to fraction form
    3,511.66/4,845.94 = 1,939.72/x
  3. Step 3: Cross multiply
    3,511.66x = 4,845.94 × 1,939.72
  4. Step 4: Simplify right side
    3,511.66x = 9,399,766.74
  5. Step 5: Solve for x
    x = 9,399,766.74/3,511.66
  6. Step 6: Final answer
    x = 2,676.73

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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.