Home / 3,380.60-4,647.32-2,906.76

Finding the Fourth Proportional to 3,380.60, 4,647.32 and 2,906.76

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Solution

The fourth proportional to 3,380.60, 4,647.32 and 2,906.76 is: 3,995.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.60 : 4,647.32 = 2,906.76 : x
  2. Step 2: Convert to fraction form
    3,380.60/4,647.32 = 2,906.76/x
  3. Step 3: Cross multiply
    3,380.60x = 4,647.32 × 2,906.76
  4. Step 4: Simplify right side
    3,380.60x = 13,508,643.88
  5. Step 5: Solve for x
    x = 13,508,643.88/3,380.60
  6. Step 6: Final answer
    x = 3,995.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.