Home / 3,074.07-4,247.78-2,188.33

Finding the Fourth Proportional to 3,074.07, 4,247.78 and 2,188.33

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Solution

The fourth proportional to 3,074.07, 4,247.78 and 2,188.33 is: 3,023.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.07 : 4,247.78 = 2,188.33 : x
  2. Step 2: Convert to fraction form
    3,074.07/4,247.78 = 2,188.33/x
  3. Step 3: Cross multiply
    3,074.07x = 4,247.78 × 2,188.33
  4. Step 4: Simplify right side
    3,074.07x = 9,295,546.74
  5. Step 5: Solve for x
    x = 9,295,546.74/3,074.07
  6. Step 6: Final answer
    x = 3,023.86

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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.