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Finding the Fourth Proportional to 8,919.46, 13,379.11 and 2,680.01

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Solution

The fourth proportional to 8,919.46, 13,379.11 and 2,680.01 is: 4,019.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.46 : 13,379.11 = 2,680.01 : x
  2. Step 2: Convert to fraction form
    8,919.46/13,379.11 = 2,680.01/x
  3. Step 3: Cross multiply
    8,919.46x = 13,379.11 × 2,680.01
  4. Step 4: Simplify right side
    8,919.46x = 35,856,075.00
  5. Step 5: Solve for x
    x = 35,856,075.00/8,919.46
  6. Step 6: Final answer
    x = 4,019.98

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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.