Home / 3,310.20-4,961.10-1,667.20

Finding the Fourth Proportional to 3,310.20, 4,961.10 and 1,667.20

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Solution

The fourth proportional to 3,310.20, 4,961.10 and 1,667.20 is: 2,498.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.20 : 4,961.10 = 1,667.20 : x
  2. Step 2: Convert to fraction form
    3,310.20/4,961.10 = 1,667.20/x
  3. Step 3: Cross multiply
    3,310.20x = 4,961.10 × 1,667.20
  4. Step 4: Simplify right side
    3,310.20x = 8,271,145.92
  5. Step 5: Solve for x
    x = 8,271,145.92/3,310.20
  6. Step 6: Final answer
    x = 2,498.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.