Home / 3,108.34-4,289.48-1,711.09

Finding the Fourth Proportional to 3,108.34, 4,289.48 and 1,711.09

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Solution

The fourth proportional to 3,108.34, 4,289.48 and 1,711.09 is: 2,361.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.34 : 4,289.48 = 1,711.09 : x
  2. Step 2: Convert to fraction form
    3,108.34/4,289.48 = 1,711.09/x
  3. Step 3: Cross multiply
    3,108.34x = 4,289.48 × 1,711.09
  4. Step 4: Simplify right side
    3,108.34x = 7,339,664.89
  5. Step 5: Solve for x
    x = 7,339,664.89/3,108.34
  6. Step 6: Final answer
    x = 2,361.29

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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.