Home / 1,809.44-2,716.32-1,378.88

Finding the Fourth Proportional to 1,809.44, 2,716.32 and 1,378.88

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Solution

The fourth proportional to 1,809.44, 2,716.32 and 1,378.88 is: 2,069.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.44 : 2,716.32 = 1,378.88 : x
  2. Step 2: Convert to fraction form
    1,809.44/2,716.32 = 1,378.88/x
  3. Step 3: Cross multiply
    1,809.44x = 2,716.32 × 1,378.88
  4. Step 4: Simplify right side
    1,809.44x = 3,745,479.32
  5. Step 5: Solve for x
    x = 3,745,479.32/1,809.44
  6. Step 6: Final answer
    x = 2,069.97

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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.