Home / 4,186.44-6,279.69-1,687.65

Finding the Fourth Proportional to 4,186.44, 6,279.69 and 1,687.65

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Solution

The fourth proportional to 4,186.44, 6,279.69 and 1,687.65 is: 2,531.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,186.44 : 6,279.69 = 1,687.65 : x
  2. Step 2: Convert to fraction form
    4,186.44/6,279.69 = 1,687.65/x
  3. Step 3: Cross multiply
    4,186.44x = 6,279.69 × 1,687.65
  4. Step 4: Simplify right side
    4,186.44x = 10,597,918.83
  5. Step 5: Solve for x
    x = 10,597,918.83/4,186.44
  6. Step 6: Final answer
    x = 2,531.49

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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.