Home / 4,942.89-6,821.82-2,847.02

Finding the Fourth Proportional to 4,942.89, 6,821.82 and 2,847.02

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Solution

The fourth proportional to 4,942.89, 6,821.82 and 2,847.02 is: 3,929.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,942.89 : 6,821.82 = 2,847.02 : x
  2. Step 2: Convert to fraction form
    4,942.89/6,821.82 = 2,847.02/x
  3. Step 3: Cross multiply
    4,942.89x = 6,821.82 × 2,847.02
  4. Step 4: Simplify right side
    4,942.89x = 19,421,823.87
  5. Step 5: Solve for x
    x = 19,421,823.87/4,942.89
  6. Step 6: Final answer
    x = 3,929.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.