Home / 3,942.46-5,913.69-2,212.30

Finding the Fourth Proportional to 3,942.46, 5,913.69 and 2,212.30

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Solution

The fourth proportional to 3,942.46, 5,913.69 and 2,212.30 is: 3,318.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.46 : 5,913.69 = 2,212.30 : x
  2. Step 2: Convert to fraction form
    3,942.46/5,913.69 = 2,212.30/x
  3. Step 3: Cross multiply
    3,942.46x = 5,913.69 × 2,212.30
  4. Step 4: Simplify right side
    3,942.46x = 13,082,856.39
  5. Step 5: Solve for x
    x = 13,082,856.39/3,942.46
  6. Step 6: Final answer
    x = 3,318.45

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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.