Home / 6,821.98-10,230.03-2,661.21

Finding the Fourth Proportional to 6,821.98, 10,230.03 and 2,661.21

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Solution

The fourth proportional to 6,821.98, 10,230.03 and 2,661.21 is: 3,990.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.98 : 10,230.03 = 2,661.21 : x
  2. Step 2: Convert to fraction form
    6,821.98/10,230.03 = 2,661.21/x
  3. Step 3: Cross multiply
    6,821.98x = 10,230.03 × 2,661.21
  4. Step 4: Simplify right side
    6,821.98x = 27,224,258.14
  5. Step 5: Solve for x
    x = 27,224,258.14/6,821.98
  6. Step 6: Final answer
    x = 3,990.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.