Home / 3,380.55-4,659.86-3,108.99

Finding the Fourth Proportional to 3,380.55, 4,659.86 and 3,108.99

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Solution

The fourth proportional to 3,380.55, 4,659.86 and 3,108.99 is: 4,285.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.55 : 4,659.86 = 3,108.99 : x
  2. Step 2: Convert to fraction form
    3,380.55/4,659.86 = 3,108.99/x
  3. Step 3: Cross multiply
    3,380.55x = 4,659.86 × 3,108.99
  4. Step 4: Simplify right side
    3,380.55x = 14,487,469.79
  5. Step 5: Solve for x
    x = 14,487,469.79/3,380.55
  6. Step 6: Final answer
    x = 4,285.54

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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.