Home / 3,380.30-4,662.39-2,931.36

Finding the Fourth Proportional to 3,380.30, 4,662.39 and 2,931.36

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Solution

The fourth proportional to 3,380.30, 4,662.39 and 2,931.36 is: 4,043.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.30 : 4,662.39 = 2,931.36 : x
  2. Step 2: Convert to fraction form
    3,380.30/4,662.39 = 2,931.36/x
  3. Step 3: Cross multiply
    3,380.30x = 4,662.39 × 2,931.36
  4. Step 4: Simplify right side
    3,380.30x = 13,667,143.55
  5. Step 5: Solve for x
    x = 13,667,143.55/3,380.30
  6. Step 6: Final answer
    x = 4,043.17

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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.