Home / 2,911.63-4,365.79-2,663.67

Finding the Fourth Proportional to 2,911.63, 4,365.79 and 2,663.67

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Solution

The fourth proportional to 2,911.63, 4,365.79 and 2,663.67 is: 3,993.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.63 : 4,365.79 = 2,663.67 : x
  2. Step 2: Convert to fraction form
    2,911.63/4,365.79 = 2,663.67/x
  3. Step 3: Cross multiply
    2,911.63x = 4,365.79 × 2,663.67
  4. Step 4: Simplify right side
    2,911.63x = 11,629,023.85
  5. Step 5: Solve for x
    x = 11,629,023.85/2,911.63
  6. Step 6: Final answer
    x = 3,993.99

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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.