Home / 3,113.93-4,295.79-2,172.03

Finding the Fourth Proportional to 3,113.93, 4,295.79 and 2,172.03

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Solution

The fourth proportional to 3,113.93, 4,295.79 and 2,172.03 is: 2,996.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.93 : 4,295.79 = 2,172.03 : x
  2. Step 2: Convert to fraction form
    3,113.93/4,295.79 = 2,172.03/x
  3. Step 3: Cross multiply
    3,113.93x = 4,295.79 × 2,172.03
  4. Step 4: Simplify right side
    3,113.93x = 9,330,584.75
  5. Step 5: Solve for x
    x = 9,330,584.75/3,113.93
  6. Step 6: Final answer
    x = 2,996.41

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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.