Home / 4,186.26-6,278.34-1,721.76

Finding the Fourth Proportional to 4,186.26, 6,278.34 and 1,721.76

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Solution

The fourth proportional to 4,186.26, 6,278.34 and 1,721.76 is: 2,582.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,186.26 : 6,278.34 = 1,721.76 : x
  2. Step 2: Convert to fraction form
    4,186.26/6,278.34 = 1,721.76/x
  3. Step 3: Cross multiply
    4,186.26x = 6,278.34 × 1,721.76
  4. Step 4: Simplify right side
    4,186.26x = 10,809,794.68
  5. Step 5: Solve for x
    x = 10,809,794.68/4,186.26
  6. Step 6: Final answer
    x = 2,582.21

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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.