Home / 2,668.14-3,682.03-1,489.21

Finding the Fourth Proportional to 2,668.14, 3,682.03 and 1,489.21

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Solution

The fourth proportional to 2,668.14, 3,682.03 and 1,489.21 is: 2,055.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.14 : 3,682.03 = 1,489.21 : x
  2. Step 2: Convert to fraction form
    2,668.14/3,682.03 = 1,489.21/x
  3. Step 3: Cross multiply
    2,668.14x = 3,682.03 × 1,489.21
  4. Step 4: Simplify right side
    2,668.14x = 5,483,315.90
  5. Step 5: Solve for x
    x = 5,483,315.90/2,668.14
  6. Step 6: Final answer
    x = 2,055.11

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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.