Home / 2,721.36-3,755.28-1,673.43

Finding the Fourth Proportional to 2,721.36, 3,755.28 and 1,673.43

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Solution

The fourth proportional to 2,721.36, 3,755.28 and 1,673.43 is: 2,309.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.36 : 3,755.28 = 1,673.43 : x
  2. Step 2: Convert to fraction form
    2,721.36/3,755.28 = 1,673.43/x
  3. Step 3: Cross multiply
    2,721.36x = 3,755.28 × 1,673.43
  4. Step 4: Simplify right side
    2,721.36x = 6,284,198.21
  5. Step 5: Solve for x
    x = 6,284,198.21/2,721.36
  6. Step 6: Final answer
    x = 2,309.21

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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.