Home / 2,716.40-4,086.99-1,621.62

Finding the Fourth Proportional to 2,716.40, 4,086.99 and 1,621.62

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Solution

The fourth proportional to 2,716.40, 4,086.99 and 1,621.62 is: 2,439.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,716.40 : 4,086.99 = 1,621.62 : x
  2. Step 2: Convert to fraction form
    2,716.40/4,086.99 = 1,621.62/x
  3. Step 3: Cross multiply
    2,716.40x = 4,086.99 × 1,621.62
  4. Step 4: Simplify right side
    2,716.40x = 6,627,544.72
  5. Step 5: Solve for x
    x = 6,627,544.72/2,716.40
  6. Step 6: Final answer
    x = 2,439.82

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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.