Home / 3,511.19-4,845.21-1,939.28

Finding the Fourth Proportional to 3,511.19, 4,845.21 and 1,939.28

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Solution

The fourth proportional to 3,511.19, 4,845.21 and 1,939.28 is: 2,676.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.19 : 4,845.21 = 1,939.28 : x
  2. Step 2: Convert to fraction form
    3,511.19/4,845.21 = 1,939.28/x
  3. Step 3: Cross multiply
    3,511.19x = 4,845.21 × 1,939.28
  4. Step 4: Simplify right side
    3,511.19x = 9,396,194.62
  5. Step 5: Solve for x
    x = 9,396,194.62/3,511.19
  6. Step 6: Final answer
    x = 2,676.08

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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.