Home / 3,811.25-5,716.99-1,214.19

Finding the Fourth Proportional to 3,811.25, 5,716.99 and 1,214.19

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Solution

The fourth proportional to 3,811.25, 5,716.99 and 1,214.19 is: 1,821.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.25 : 5,716.99 = 1,214.19 : x
  2. Step 2: Convert to fraction form
    3,811.25/5,716.99 = 1,214.19/x
  3. Step 3: Cross multiply
    3,811.25x = 5,716.99 × 1,214.19
  4. Step 4: Simplify right side
    3,811.25x = 6,941,512.09
  5. Step 5: Solve for x
    x = 6,941,512.09/3,811.25
  6. Step 6: Final answer
    x = 1,821.32

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1.5x scale

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.