Home / 7,912.92-11,869.37-2,983.67

Finding the Fourth Proportional to 7,912.92, 11,869.37 and 2,983.67

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Solution

The fourth proportional to 7,912.92, 11,869.37 and 2,983.67 is: 4,475.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.92 : 11,869.37 = 2,983.67 : x
  2. Step 2: Convert to fraction form
    7,912.92/11,869.37 = 2,983.67/x
  3. Step 3: Cross multiply
    7,912.92x = 11,869.37 × 2,983.67
  4. Step 4: Simplify right side
    7,912.92x = 35,414,208.92
  5. Step 5: Solve for x
    x = 35,414,208.92/7,912.92
  6. Step 6: Final answer
    x = 4,475.49

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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.