Home / 2,749.56-3,791.68-2,521.90

Finding the Fourth Proportional to 2,749.56, 3,791.68 and 2,521.90

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Solution

The fourth proportional to 2,749.56, 3,791.68 and 2,521.90 is: 3,477.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.56 : 3,791.68 = 2,521.90 : x
  2. Step 2: Convert to fraction form
    2,749.56/3,791.68 = 2,521.90/x
  3. Step 3: Cross multiply
    2,749.56x = 3,791.68 × 2,521.90
  4. Step 4: Simplify right side
    2,749.56x = 9,562,237.79
  5. Step 5: Solve for x
    x = 9,562,237.79/2,749.56
  6. Step 6: Final answer
    x = 3,477.73

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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.