Home / 3,481.92-5,200.10-2,789.64

Finding the Fourth Proportional to 3,481.92, 5,200.10 and 2,789.64

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Solution

The fourth proportional to 3,481.92, 5,200.10 and 2,789.64 is: 4,166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.92 : 5,200.10 = 2,789.64 : x
  2. Step 2: Convert to fraction form
    3,481.92/5,200.10 = 2,789.64/x
  3. Step 3: Cross multiply
    3,481.92x = 5,200.10 × 2,789.64
  4. Step 4: Simplify right side
    3,481.92x = 14,506,406.96
  5. Step 5: Solve for x
    x = 14,506,406.96/3,481.92
  6. Step 6: Final answer
    x = 4,166.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.