Home / 2,936.45-4,048.97-1,872.79

Finding the Fourth Proportional to 2,936.45, 4,048.97 and 1,872.79

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Solution

The fourth proportional to 2,936.45, 4,048.97 and 1,872.79 is: 2,582.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.45 : 4,048.97 = 1,872.79 : x
  2. Step 2: Convert to fraction form
    2,936.45/4,048.97 = 1,872.79/x
  3. Step 3: Cross multiply
    2,936.45x = 4,048.97 × 1,872.79
  4. Step 4: Simplify right side
    2,936.45x = 7,582,865.09
  5. Step 5: Solve for x
    x = 7,582,865.09/2,936.45
  6. Step 6: Final answer
    x = 2,582.33

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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.