Home / 7,222.50-10,828.89-3,324.78

Finding the Fourth Proportional to 7,222.50, 10,828.89 and 3,324.78

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Solution

The fourth proportional to 7,222.50, 10,828.89 and 3,324.78 is: 4,984.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.50 : 10,828.89 = 3,324.78 : x
  2. Step 2: Convert to fraction form
    7,222.50/10,828.89 = 3,324.78/x
  3. Step 3: Cross multiply
    7,222.50x = 10,828.89 × 3,324.78
  4. Step 4: Simplify right side
    7,222.50x = 36,003,676.89
  5. Step 5: Solve for x
    x = 36,003,676.89/7,222.50
  6. Step 6: Final answer
    x = 4,984.93

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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.