Home / 3,511.25-4,845.54-1,939.49

Finding the Fourth Proportional to 3,511.25, 4,845.54 and 1,939.49

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Solution

The fourth proportional to 3,511.25, 4,845.54 and 1,939.49 is: 2,676.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.25 : 4,845.54 = 1,939.49 : x
  2. Step 2: Convert to fraction form
    3,511.25/4,845.54 = 1,939.49/x
  3. Step 3: Cross multiply
    3,511.25x = 4,845.54 × 1,939.49
  4. Step 4: Simplify right side
    3,511.25x = 9,397,876.37
  5. Step 5: Solve for x
    x = 9,397,876.37/3,511.25
  6. Step 6: Final answer
    x = 2,676.50

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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.