Home / 2,129.26-3,195.26-1,205.48

Finding the Fourth Proportional to 2,129.26, 3,195.26 and 1,205.48

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Solution

The fourth proportional to 2,129.26, 3,195.26 and 1,205.48 is: 1,809.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.26 : 3,195.26 = 1,205.48 : x
  2. Step 2: Convert to fraction form
    2,129.26/3,195.26 = 1,205.48/x
  3. Step 3: Cross multiply
    2,129.26x = 3,195.26 × 1,205.48
  4. Step 4: Simplify right side
    2,129.26x = 3,851,822.02
  5. Step 5: Solve for x
    x = 3,851,822.02/2,129.26
  6. Step 6: Final answer
    x = 1,809.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.