Home / 2,749.82-4,119.93-2,290.55

Finding the Fourth Proportional to 2,749.82, 4,119.93 and 2,290.55

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Solution

The fourth proportional to 2,749.82, 4,119.93 and 2,290.55 is: 3,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.82 : 4,119.93 = 2,290.55 : x
  2. Step 2: Convert to fraction form
    2,749.82/4,119.93 = 2,290.55/x
  3. Step 3: Cross multiply
    2,749.82x = 4,119.93 × 2,290.55
  4. Step 4: Simplify right side
    2,749.82x = 9,436,885.06
  5. Step 5: Solve for x
    x = 9,436,885.06/2,749.82
  6. Step 6: Final answer
    x = 3,431.83

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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.