Home / 7,222.80-10,836.24-2,028.72

Finding the Fourth Proportional to 7,222.80, 10,836.24 and 2,028.72

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Solution

The fourth proportional to 7,222.80, 10,836.24 and 2,028.72 is: 3,043.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.80 : 10,836.24 = 2,028.72 : x
  2. Step 2: Convert to fraction form
    7,222.80/10,836.24 = 2,028.72/x
  3. Step 3: Cross multiply
    7,222.80x = 10,836.24 × 2,028.72
  4. Step 4: Simplify right side
    7,222.80x = 21,983,696.81
  5. Step 5: Solve for x
    x = 21,983,696.81/7,222.80
  6. Step 6: Final answer
    x = 3,043.65

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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.