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Finding the Fourth Proportional to 6,679.72, 10,019.90 and 2,063.40

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Solution

The fourth proportional to 6,679.72, 10,019.90 and 2,063.40 is: 3,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.72 : 10,019.90 = 2,063.40 : x
  2. Step 2: Convert to fraction form
    6,679.72/10,019.90 = 2,063.40/x
  3. Step 3: Cross multiply
    6,679.72x = 10,019.90 × 2,063.40
  4. Step 4: Simplify right side
    6,679.72x = 20,675,061.66
  5. Step 5: Solve for x
    x = 20,675,061.66/6,679.72
  6. Step 6: Final answer
    x = 3,095.20

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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.