Home / 5,111.36-7,669.99-2,149.56

Finding the Fourth Proportional to 5,111.36, 7,669.99 and 2,149.56

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Solution

The fourth proportional to 5,111.36, 7,669.99 and 2,149.56 is: 3,225.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.36 : 7,669.99 = 2,149.56 : x
  2. Step 2: Convert to fraction form
    5,111.36/7,669.99 = 2,149.56/x
  3. Step 3: Cross multiply
    5,111.36x = 7,669.99 × 2,149.56
  4. Step 4: Simplify right side
    5,111.36x = 16,487,098.33
  5. Step 5: Solve for x
    x = 16,487,098.33/5,111.36
  6. Step 6: Final answer
    x = 3,225.58

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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.