Home / 7,028.20-9,698.58-3,884.68

Finding the Fourth Proportional to 7,028.20, 9,698.58 and 3,884.68

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Solution

The fourth proportional to 7,028.20, 9,698.58 and 3,884.68 is: 5,360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028.20 : 9,698.58 = 3,884.68 : x
  2. Step 2: Convert to fraction form
    7,028.20/9,698.58 = 3,884.68/x
  3. Step 3: Cross multiply
    7,028.20x = 9,698.58 × 3,884.68
  4. Step 4: Simplify right side
    7,028.20x = 37,675,879.75
  5. Step 5: Solve for x
    x = 37,675,879.75/7,028.20
  6. Step 6: Final answer
    x = 5,360.67

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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.