Home / 4,186.06-6,279.44-2,105.00

Finding the Fourth Proportional to 4,186.06, 6,279.44 and 2,105.00

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Solution

The fourth proportional to 4,186.06, 6,279.44 and 2,105.00 is: 3,157.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,186.06 : 6,279.44 = 2,105.00 : x
  2. Step 2: Convert to fraction form
    4,186.06/6,279.44 = 2,105.00/x
  3. Step 3: Cross multiply
    4,186.06x = 6,279.44 × 2,105.00
  4. Step 4: Simplify right side
    4,186.06x = 13,218,195.07
  5. Step 5: Solve for x
    x = 13,218,195.07/4,186.06
  6. Step 6: Final answer
    x = 3,157.67

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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.