Home / 3,906.41-5,390.69-2,394.54

Finding the Fourth Proportional to 3,906.41, 5,390.69 and 2,394.54

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Solution

The fourth proportional to 3,906.41, 5,390.69 and 2,394.54 is: 3,304.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.41 : 5,390.69 = 2,394.54 : x
  2. Step 2: Convert to fraction form
    3,906.41/5,390.69 = 2,394.54/x
  3. Step 3: Cross multiply
    3,906.41x = 5,390.69 × 2,394.54
  4. Step 4: Simplify right side
    3,906.41x = 12,908,210.86
  5. Step 5: Solve for x
    x = 12,908,210.86/3,906.41
  6. Step 6: Final answer
    x = 3,304.37

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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.