Home / 2,738.55-4,109.81-1,858.96

Finding the Fourth Proportional to 2,738.55, 4,109.81 and 1,858.96

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Solution

The fourth proportional to 2,738.55, 4,109.81 and 1,858.96 is: 2,789.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.55 : 4,109.81 = 1,858.96 : x
  2. Step 2: Convert to fraction form
    2,738.55/4,109.81 = 1,858.96/x
  3. Step 3: Cross multiply
    2,738.55x = 4,109.81 × 1,858.96
  4. Step 4: Simplify right side
    2,738.55x = 7,639,968.24
  5. Step 5: Solve for x
    x = 7,639,968.24/2,738.55
  6. Step 6: Final answer
    x = 2,789.78

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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.