Home / 1,969.27-2,716.53-1,223.26

Finding the Fourth Proportional to 1,969.27, 2,716.53 and 1,223.26

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Solution

The fourth proportional to 1,969.27, 2,716.53 and 1,223.26 is: 1,687.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.27 : 2,716.53 = 1,223.26 : x
  2. Step 2: Convert to fraction form
    1,969.27/2,716.53 = 1,223.26/x
  3. Step 3: Cross multiply
    1,969.27x = 2,716.53 × 1,223.26
  4. Step 4: Simplify right side
    1,969.27x = 3,323,022.49
  5. Step 5: Solve for x
    x = 3,323,022.49/1,969.27
  6. Step 6: Final answer
    x = 1,687.44

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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.