Home / 2,976.14-4,109.24-1,983.49

Finding the Fourth Proportional to 2,976.14, 4,109.24 and 1,983.49

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Solution

The fourth proportional to 2,976.14, 4,109.24 and 1,983.49 is: 2,738.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.14 : 4,109.24 = 1,983.49 : x
  2. Step 2: Convert to fraction form
    2,976.14/4,109.24 = 1,983.49/x
  3. Step 3: Cross multiply
    2,976.14x = 4,109.24 × 1,983.49
  4. Step 4: Simplify right side
    2,976.14x = 8,150,636.45
  5. Step 5: Solve for x
    x = 8,150,636.45/2,976.14
  6. Step 6: Final answer
    x = 2,738.66

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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.