Home / 1,721.26-2,375.38-1,022.64

Finding the Fourth Proportional to 1,721.26, 2,375.38 and 1,022.64

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Solution

The fourth proportional to 1,721.26, 2,375.38 and 1,022.64 is: 1,411.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.26 : 2,375.38 = 1,022.64 : x
  2. Step 2: Convert to fraction form
    1,721.26/2,375.38 = 1,022.64/x
  3. Step 3: Cross multiply
    1,721.26x = 2,375.38 × 1,022.64
  4. Step 4: Simplify right side
    1,721.26x = 2,429,158.60
  5. Step 5: Solve for x
    x = 2,429,158.60/1,721.26
  6. Step 6: Final answer
    x = 1,411.27

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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.