Home / 2,911.33-4,017.36-1,791.91

Finding the Fourth Proportional to 2,911.33, 4,017.36 and 1,791.91

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Solution

The fourth proportional to 2,911.33, 4,017.36 and 1,791.91 is: 2,472.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.33 : 4,017.36 = 1,791.91 : x
  2. Step 2: Convert to fraction form
    2,911.33/4,017.36 = 1,791.91/x
  3. Step 3: Cross multiply
    2,911.33x = 4,017.36 × 1,791.91
  4. Step 4: Simplify right side
    2,911.33x = 7,198,747.56
  5. Step 5: Solve for x
    x = 7,198,747.56/2,911.33
  6. Step 6: Final answer
    x = 2,472.67

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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.