Home / 2,739.44-3,781.96-1,809.56

Finding the Fourth Proportional to 2,739.44, 3,781.96 and 1,809.56

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Solution

The fourth proportional to 2,739.44, 3,781.96 and 1,809.56 is: 2,498.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.44 : 3,781.96 = 1,809.56 : x
  2. Step 2: Convert to fraction form
    2,739.44/3,781.96 = 1,809.56/x
  3. Step 3: Cross multiply
    2,739.44x = 3,781.96 × 1,809.56
  4. Step 4: Simplify right side
    2,739.44x = 6,843,683.54
  5. Step 5: Solve for x
    x = 6,843,683.54/2,739.44
  6. Step 6: Final answer
    x = 2,498.21

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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.