Home / 4,212.70-6,331.20-3,678.10

Finding the Fourth Proportional to 4,212.70, 6,331.20 and 3,678.10

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Solution

The fourth proportional to 4,212.70, 6,331.20 and 3,678.10 is: 5,527.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.70 : 6,331.20 = 3,678.10 : x
  2. Step 2: Convert to fraction form
    4,212.70/6,331.20 = 3,678.10/x
  3. Step 3: Cross multiply
    4,212.70x = 6,331.20 × 3,678.10
  4. Step 4: Simplify right side
    4,212.70x = 23,286,786.72
  5. Step 5: Solve for x
    x = 23,286,786.72/4,212.70
  6. Step 6: Final answer
    x = 5,527.76

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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.