Home / 3,108.25-4,289.39-1,711

Finding the Fourth Proportional to 3,108.25, 4,289.39 and 1,711

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Solution

The fourth proportional to 3,108.25, 4,289.39 and 1,711 is: 2,361.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.25 : 4,289.39 = 1,711 : x
  2. Step 2: Convert to fraction form
    3,108.25/4,289.39 = 1,711/x
  3. Step 3: Cross multiply
    3,108.25x = 4,289.39 × 1,711
  4. Step 4: Simplify right side
    3,108.25x = 7,339,146.29
  5. Step 5: Solve for x
    x = 7,339,146.29/3,108.25
  6. Step 6: Final answer
    x = 2,361.18

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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.