Home / 3,042.30-4,198.36-1,645.05

Finding the Fourth Proportional to 3,042.30, 4,198.36 and 1,645.05

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Solution

The fourth proportional to 3,042.30, 4,198.36 and 1,645.05 is: 2,270.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.30 : 4,198.36 = 1,645.05 : x
  2. Step 2: Convert to fraction form
    3,042.30/4,198.36 = 1,645.05/x
  3. Step 3: Cross multiply
    3,042.30x = 4,198.36 × 1,645.05
  4. Step 4: Simplify right side
    3,042.30x = 6,906,512.12
  5. Step 5: Solve for x
    x = 6,906,512.12/3,042.30
  6. Step 6: Final answer
    x = 2,270.16

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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.