Home / 6,078.21-9,118.83-3,115.50

Finding the Fourth Proportional to 6,078.21, 9,118.83 and 3,115.50

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Solution

The fourth proportional to 6,078.21, 9,118.83 and 3,115.50 is: 4,674.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,078.21 : 9,118.83 = 3,115.50 : x
  2. Step 2: Convert to fraction form
    6,078.21/9,118.83 = 3,115.50/x
  3. Step 3: Cross multiply
    6,078.21x = 9,118.83 × 3,115.50
  4. Step 4: Simplify right side
    6,078.21x = 28,409,714.87
  5. Step 5: Solve for x
    x = 28,409,714.87/6,078.21
  6. Step 6: Final answer
    x = 4,674.03

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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.