Home / 8,254.19-12,379.46-2,988.38

Finding the Fourth Proportional to 8,254.19, 12,379.46 and 2,988.38

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Solution

The fourth proportional to 8,254.19, 12,379.46 and 2,988.38 is: 4,481.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.19 : 12,379.46 = 2,988.38 : x
  2. Step 2: Convert to fraction form
    8,254.19/12,379.46 = 2,988.38/x
  3. Step 3: Cross multiply
    8,254.19x = 12,379.46 × 2,988.38
  4. Step 4: Simplify right side
    8,254.19x = 36,994,453.84
  5. Step 5: Solve for x
    x = 36,994,453.84/8,254.19
  6. Step 6: Final answer
    x = 4,481.90

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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.