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Finding the Fourth Proportional to 2,821.94, 3,894.26 and 1,579.94

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Solution

The fourth proportional to 2,821.94, 3,894.26 and 1,579.94 is: 2,180.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.94 : 3,894.26 = 1,579.94 : x
  2. Step 2: Convert to fraction form
    2,821.94/3,894.26 = 1,579.94/x
  3. Step 3: Cross multiply
    2,821.94x = 3,894.26 × 1,579.94
  4. Step 4: Simplify right side
    2,821.94x = 6,152,697.14
  5. Step 5: Solve for x
    x = 6,152,697.14/2,821.94
  6. Step 6: Final answer
    x = 2,180.31

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