Home / 3,786.65-5,224.37-2,668.22

Finding the Fourth Proportional to 3,786.65, 5,224.37 and 2,668.22

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Solution

The fourth proportional to 3,786.65, 5,224.37 and 2,668.22 is: 3,681.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.65 : 5,224.37 = 2,668.22 : x
  2. Step 2: Convert to fraction form
    3,786.65/5,224.37 = 2,668.22/x
  3. Step 3: Cross multiply
    3,786.65x = 5,224.37 × 2,668.22
  4. Step 4: Simplify right side
    3,786.65x = 13,939,756.47
  5. Step 5: Solve for x
    x = 13,939,756.47/3,786.65
  6. Step 6: Final answer
    x = 3,681.29

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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.