Home / 3,399-4,690.21-1,982.99

Finding the Fourth Proportional to 3,399, 4,690.21 and 1,982.99

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Solution

The fourth proportional to 3,399, 4,690.21 and 1,982.99 is: 2,736.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399 : 4,690.21 = 1,982.99 : x
  2. Step 2: Convert to fraction form
    3,399/4,690.21 = 1,982.99/x
  3. Step 3: Cross multiply
    3,399x = 4,690.21 × 1,982.99
  4. Step 4: Simplify right side
    3,399x = 9,300,639.53
  5. Step 5: Solve for x
    x = 9,300,639.53/3,399
  6. Step 6: Final answer
    x = 2,736.29

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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.