Home / 3,268.28-4,891.34-1,970.66

Finding the Fourth Proportional to 3,268.28, 4,891.34 and 1,970.66

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Solution

The fourth proportional to 3,268.28, 4,891.34 and 1,970.66 is: 2,949.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,268.28 : 4,891.34 = 1,970.66 : x
  2. Step 2: Convert to fraction form
    3,268.28/4,891.34 = 1,970.66/x
  3. Step 3: Cross multiply
    3,268.28x = 4,891.34 × 1,970.66
  4. Step 4: Simplify right side
    3,268.28x = 9,639,168.08
  5. Step 5: Solve for x
    x = 9,639,168.08/3,268.28
  6. Step 6: Final answer
    x = 2,949.31

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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.