Home / 3,511.80-4,846.05-1,939.86

Finding the Fourth Proportional to 3,511.80, 4,846.05 and 1,939.86

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Solution

The fourth proportional to 3,511.80, 4,846.05 and 1,939.86 is: 2,676.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.80 : 4,846.05 = 1,939.86 : x
  2. Step 2: Convert to fraction form
    3,511.80/4,846.05 = 1,939.86/x
  3. Step 3: Cross multiply
    3,511.80x = 4,846.05 × 1,939.86
  4. Step 4: Simplify right side
    3,511.80x = 9,400,658.55
  5. Step 5: Solve for x
    x = 9,400,658.55/3,511.80
  6. Step 6: Final answer
    x = 2,676.88

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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.