Home / 4,911.05-7,367.90-2,138.33

Finding the Fourth Proportional to 4,911.05, 7,367.90 and 2,138.33

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Solution

The fourth proportional to 4,911.05, 7,367.90 and 2,138.33 is: 3,208.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.05 : 7,367.90 = 2,138.33 : x
  2. Step 2: Convert to fraction form
    4,911.05/7,367.90 = 2,138.33/x
  3. Step 3: Cross multiply
    4,911.05x = 7,367.90 × 2,138.33
  4. Step 4: Simplify right side
    4,911.05x = 15,755,009.34
  5. Step 5: Solve for x
    x = 15,755,009.34/4,911.05
  6. Step 6: Final answer
    x = 3,208.07

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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.