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Finding the Fourth Proportional to 6,290, 9,435.04 and 2,186

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Solution

The fourth proportional to 6,290, 9,435.04 and 2,186 is: 3,279.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290 : 9,435.04 = 2,186 : x
  2. Step 2: Convert to fraction form
    6,290/9,435.04 = 2,186/x
  3. Step 3: Cross multiply
    6,290x = 9,435.04 × 2,186
  4. Step 4: Simplify right side
    6,290x = 20,624,997.44
  5. Step 5: Solve for x
    x = 20,624,997.44/6,290
  6. Step 6: Final answer
    x = 3,279.01

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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.