Home / 7,819.77-11,722.37-2,622

Finding the Fourth Proportional to 7,819.77, 11,722.37 and 2,622

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Solution

The fourth proportional to 7,819.77, 11,722.37 and 2,622 is: 3,930.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.77 : 11,722.37 = 2,622 : x
  2. Step 2: Convert to fraction form
    7,819.77/11,722.37 = 2,622/x
  3. Step 3: Cross multiply
    7,819.77x = 11,722.37 × 2,622
  4. Step 4: Simplify right side
    7,819.77x = 30,736,041.03
  5. Step 5: Solve for x
    x = 30,736,041.03/7,819.77
  6. Step 6: Final answer
    x = 3,930.56

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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.