Home / 3,278.20-4,529.67-2,620.48

Finding the Fourth Proportional to 3,278.20, 4,529.67 and 2,620.48

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Solution

The fourth proportional to 3,278.20, 4,529.67 and 2,620.48 is: 3,620.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.20 : 4,529.67 = 2,620.48 : x
  2. Step 2: Convert to fraction form
    3,278.20/4,529.67 = 2,620.48/x
  3. Step 3: Cross multiply
    3,278.20x = 4,529.67 × 2,620.48
  4. Step 4: Simplify right side
    3,278.20x = 11,869,909.64
  5. Step 5: Solve for x
    x = 11,869,909.64/3,278.20
  6. Step 6: Final answer
    x = 3,620.86

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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.