Home / 3,108.40-4,659.12-2,380.96

Finding the Fourth Proportional to 3,108.40, 4,659.12 and 2,380.96

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Solution

The fourth proportional to 3,108.40, 4,659.12 and 2,380.96 is: 3,568.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.40 : 4,659.12 = 2,380.96 : x
  2. Step 2: Convert to fraction form
    3,108.40/4,659.12 = 2,380.96/x
  3. Step 3: Cross multiply
    3,108.40x = 4,659.12 × 2,380.96
  4. Step 4: Simplify right side
    3,108.40x = 11,093,178.36
  5. Step 5: Solve for x
    x = 11,093,178.36/3,108.40
  6. Step 6: Final answer
    x = 3,568.77

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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.