Home / 2,738.70-3,778.04-1,619.09

Finding the Fourth Proportional to 2,738.70, 3,778.04 and 1,619.09

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Solution

The fourth proportional to 2,738.70, 3,778.04 and 1,619.09 is: 2,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.70 : 3,778.04 = 1,619.09 : x
  2. Step 2: Convert to fraction form
    2,738.70/3,778.04 = 1,619.09/x
  3. Step 3: Cross multiply
    2,738.70x = 3,778.04 × 1,619.09
  4. Step 4: Simplify right side
    2,738.70x = 6,116,959.80
  5. Step 5: Solve for x
    x = 6,116,959.80/2,738.70
  6. Step 6: Final answer
    x = 2,233.53

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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.