Home / 3,511.20-4,845.50-1,939.24

Finding the Fourth Proportional to 3,511.20, 4,845.50 and 1,939.24

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Solution

The fourth proportional to 3,511.20, 4,845.50 and 1,939.24 is: 2,676.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.20 : 4,845.50 = 1,939.24 : x
  2. Step 2: Convert to fraction form
    3,511.20/4,845.50 = 1,939.24/x
  3. Step 3: Cross multiply
    3,511.20x = 4,845.50 × 1,939.24
  4. Step 4: Simplify right side
    3,511.20x = 9,396,587.42
  5. Step 5: Solve for x
    x = 9,396,587.42/3,511.20
  6. Step 6: Final answer
    x = 2,676.18

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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.