Home / 3,511.21-4,845.36-1,939.18

Finding the Fourth Proportional to 3,511.21, 4,845.36 and 1,939.18

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Solution

The fourth proportional to 3,511.21, 4,845.36 and 1,939.18 is: 2,676.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.21 : 4,845.36 = 1,939.18 : x
  2. Step 2: Convert to fraction form
    3,511.21/4,845.36 = 1,939.18/x
  3. Step 3: Cross multiply
    3,511.21x = 4,845.36 × 1,939.18
  4. Step 4: Simplify right side
    3,511.21x = 9,396,025.20
  5. Step 5: Solve for x
    x = 9,396,025.20/3,511.21
  6. Step 6: Final answer
    x = 2,676.01

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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.