Home / 6,121.99-8,450.26-3,603.90

Finding the Fourth Proportional to 6,121.99, 8,450.26 and 3,603.90

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Solution

The fourth proportional to 6,121.99, 8,450.26 and 3,603.90 is: 4,974.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.99 : 8,450.26 = 3,603.90 : x
  2. Step 2: Convert to fraction form
    6,121.99/8,450.26 = 3,603.90/x
  3. Step 3: Cross multiply
    6,121.99x = 8,450.26 × 3,603.90
  4. Step 4: Simplify right side
    6,121.99x = 30,453,914.69
  5. Step 5: Solve for x
    x = 30,453,914.69/6,121.99
  6. Step 6: Final answer
    x = 4,974.51

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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.