Home / 3,369.60-4,651.20-2,908.80

Finding the Fourth Proportional to 3,369.60, 4,651.20 and 2,908.80

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Solution

The fourth proportional to 3,369.60, 4,651.20 and 2,908.80 is: 4,015.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.60 : 4,651.20 = 2,908.80 : x
  2. Step 2: Convert to fraction form
    3,369.60/4,651.20 = 2,908.80/x
  3. Step 3: Cross multiply
    3,369.60x = 4,651.20 × 2,908.80
  4. Step 4: Simplify right side
    3,369.60x = 13,529,410.56
  5. Step 5: Solve for x
    x = 13,529,410.56/3,369.60
  6. Step 6: Final answer
    x = 4,015.14

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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.