Home / 3,162.87-4,363.99-1,968.80

Finding the Fourth Proportional to 3,162.87, 4,363.99 and 1,968.80

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Solution

The fourth proportional to 3,162.87, 4,363.99 and 1,968.80 is: 2,716.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.87 : 4,363.99 = 1,968.80 : x
  2. Step 2: Convert to fraction form
    3,162.87/4,363.99 = 1,968.80/x
  3. Step 3: Cross multiply
    3,162.87x = 4,363.99 × 1,968.80
  4. Step 4: Simplify right side
    3,162.87x = 8,591,796.77
  5. Step 5: Solve for x
    x = 8,591,796.77/3,162.87
  6. Step 6: Final answer
    x = 2,716.46

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1.5x scale

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.