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Finding the Fourth Proportional to 6,679.49, 10,021.16 and 1,999.85

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Solution

The fourth proportional to 6,679.49, 10,021.16 and 1,999.85 is: 3,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.49 : 10,021.16 = 1,999.85 : x
  2. Step 2: Convert to fraction form
    6,679.49/10,021.16 = 1,999.85/x
  3. Step 3: Cross multiply
    6,679.49x = 10,021.16 × 1,999.85
  4. Step 4: Simplify right side
    6,679.49x = 20,040,806.83
  5. Step 5: Solve for x
    x = 20,040,806.83/6,679.49
  6. Step 6: Final answer
    x = 3,000.35

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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.