Home / 8,079.86-12,120.06-2,235.98

Finding the Fourth Proportional to 8,079.86, 12,120.06 and 2,235.98

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Solution

The fourth proportional to 8,079.86, 12,120.06 and 2,235.98 is: 3,354.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.86 : 12,120.06 = 2,235.98 : x
  2. Step 2: Convert to fraction form
    8,079.86/12,120.06 = 2,235.98/x
  3. Step 3: Cross multiply
    8,079.86x = 12,120.06 × 2,235.98
  4. Step 4: Simplify right side
    8,079.86x = 27,100,250.44
  5. Step 5: Solve for x
    x = 27,100,250.44/8,079.86
  6. Step 6: Final answer
    x = 3,354.05

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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.