Home / 2,821.53-4,229.87-1,361.71

Finding the Fourth Proportional to 2,821.53, 4,229.87 and 1,361.71

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Solution

The fourth proportional to 2,821.53, 4,229.87 and 1,361.71 is: 2,041.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.53 : 4,229.87 = 1,361.71 : x
  2. Step 2: Convert to fraction form
    2,821.53/4,229.87 = 1,361.71/x
  3. Step 3: Cross multiply
    2,821.53x = 4,229.87 × 1,361.71
  4. Step 4: Simplify right side
    2,821.53x = 5,759,856.28
  5. Step 5: Solve for x
    x = 5,759,856.28/2,821.53
  6. Step 6: Final answer
    x = 2,041.39

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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.