Home / 2,975.14-4,107.86-1,982.49

Finding the Fourth Proportional to 2,975.14, 4,107.86 and 1,982.49

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Solution

The fourth proportional to 2,975.14, 4,107.86 and 1,982.49 is: 2,737.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.14 : 4,107.86 = 1,982.49 : x
  2. Step 2: Convert to fraction form
    2,975.14/4,107.86 = 1,982.49/x
  3. Step 3: Cross multiply
    2,975.14x = 4,107.86 × 1,982.49
  4. Step 4: Simplify right side
    2,975.14x = 8,143,791.37
  5. Step 5: Solve for x
    x = 8,143,791.37/2,975.14
  6. Step 6: Final answer
    x = 2,737.28

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1.5x scale

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.