Home / 2,668.09-3,682.11-1,489.14

Finding the Fourth Proportional to 2,668.09, 3,682.11 and 1,489.14

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Solution

The fourth proportional to 2,668.09, 3,682.11 and 1,489.14 is: 2,055.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.09 : 3,682.11 = 1,489.14 : x
  2. Step 2: Convert to fraction form
    2,668.09/3,682.11 = 1,489.14/x
  3. Step 3: Cross multiply
    2,668.09x = 3,682.11 × 1,489.14
  4. Step 4: Simplify right side
    2,668.09x = 5,483,177.29
  5. Step 5: Solve for x
    x = 5,483,177.29/2,668.09
  6. Step 6: Final answer
    x = 2,055.09

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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.