Home / 4,267.20-6,403.68-3,115.68

Finding the Fourth Proportional to 4,267.20, 6,403.68 and 3,115.68

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Solution

The fourth proportional to 4,267.20, 6,403.68 and 3,115.68 is: 4,675.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,267.20 : 6,403.68 = 3,115.68 : x
  2. Step 2: Convert to fraction form
    4,267.20/6,403.68 = 3,115.68/x
  3. Step 3: Cross multiply
    4,267.20x = 6,403.68 × 3,115.68
  4. Step 4: Simplify right side
    4,267.20x = 19,951,817.70
  5. Step 5: Solve for x
    x = 19,951,817.70/4,267.20
  6. Step 6: Final answer
    x = 4,675.62

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1.5x scale

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.