Home / 4,815.72-7,222.32-2,042.28

Finding the Fourth Proportional to 4,815.72, 7,222.32 and 2,042.28

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Solution

The fourth proportional to 4,815.72, 7,222.32 and 2,042.28 is: 3,062.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.72 : 7,222.32 = 2,042.28 : x
  2. Step 2: Convert to fraction form
    4,815.72/7,222.32 = 2,042.28/x
  3. Step 3: Cross multiply
    4,815.72x = 7,222.32 × 2,042.28
  4. Step 4: Simplify right side
    4,815.72x = 14,749,999.69
  5. Step 5: Solve for x
    x = 14,749,999.69/4,815.72
  6. Step 6: Final answer
    x = 3,062.89

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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.