Home / 2,906.43-4,004.19-2,009.31

Finding the Fourth Proportional to 2,906.43, 4,004.19 and 2,009.31

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Solution

The fourth proportional to 2,906.43, 4,004.19 and 2,009.31 is: 2,768.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.43 : 4,004.19 = 2,009.31 : x
  2. Step 2: Convert to fraction form
    2,906.43/4,004.19 = 2,009.31/x
  3. Step 3: Cross multiply
    2,906.43x = 4,004.19 × 2,009.31
  4. Step 4: Simplify right side
    2,906.43x = 8,045,659.01
  5. Step 5: Solve for x
    x = 8,045,659.01/2,906.43
  6. Step 6: Final answer
    x = 2,768.23

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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.