Home / 3,321.42-4,583.99-2,145.90

Finding the Fourth Proportional to 3,321.42, 4,583.99 and 2,145.90

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Solution

The fourth proportional to 3,321.42, 4,583.99 and 2,145.90 is: 2,961.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.42 : 4,583.99 = 2,145.90 : x
  2. Step 2: Convert to fraction form
    3,321.42/4,583.99 = 2,145.90/x
  3. Step 3: Cross multiply
    3,321.42x = 4,583.99 × 2,145.90
  4. Step 4: Simplify right side
    3,321.42x = 9,836,806.70
  5. Step 5: Solve for x
    x = 9,836,806.70/3,321.42
  6. Step 6: Final answer
    x = 2,961.63

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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.