Home / 2,738.37-3,778.44-1,543.28

Finding the Fourth Proportional to 2,738.37, 3,778.44 and 1,543.28

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Solution

The fourth proportional to 2,738.37, 3,778.44 and 1,543.28 is: 2,129.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.37 : 3,778.44 = 1,543.28 : x
  2. Step 2: Convert to fraction form
    2,738.37/3,778.44 = 1,543.28/x
  3. Step 3: Cross multiply
    2,738.37x = 3,778.44 × 1,543.28
  4. Step 4: Simplify right side
    2,738.37x = 5,831,171.99
  5. Step 5: Solve for x
    x = 5,831,171.99/2,738.37
  6. Step 6: Final answer
    x = 2,129.43

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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.