Home / 3,906.09-5,390.40-2,204.48

Finding the Fourth Proportional to 3,906.09, 5,390.40 and 2,204.48

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Solution

The fourth proportional to 3,906.09, 5,390.40 and 2,204.48 is: 3,042.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.09 : 5,390.40 = 2,204.48 : x
  2. Step 2: Convert to fraction form
    3,906.09/5,390.40 = 2,204.48/x
  3. Step 3: Cross multiply
    3,906.09x = 5,390.40 × 2,204.48
  4. Step 4: Simplify right side
    3,906.09x = 11,883,042.47
  5. Step 5: Solve for x
    x = 11,883,042.47/3,906.09
  6. Step 6: Final answer
    x = 3,042.18

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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.