Home / 4,918.10-6,786.81-2,679.94

Finding the Fourth Proportional to 4,918.10, 6,786.81 and 2,679.94

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Solution

The fourth proportional to 4,918.10, 6,786.81 and 2,679.94 is: 3,698.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.10 : 6,786.81 = 2,679.94 : x
  2. Step 2: Convert to fraction form
    4,918.10/6,786.81 = 2,679.94/x
  3. Step 3: Cross multiply
    4,918.10x = 6,786.81 × 2,679.94
  4. Step 4: Simplify right side
    4,918.10x = 18,188,221.44
  5. Step 5: Solve for x
    x = 18,188,221.44/4,918.10
  6. Step 6: Final answer
    x = 3,698.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.