Home / 3,042.35-4,198.44-1,645.10

Finding the Fourth Proportional to 3,042.35, 4,198.44 and 1,645.10

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Solution

The fourth proportional to 3,042.35, 4,198.44 and 1,645.10 is: 2,270.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.35 : 4,198.44 = 1,645.10 : x
  2. Step 2: Convert to fraction form
    3,042.35/4,198.44 = 1,645.10/x
  3. Step 3: Cross multiply
    3,042.35x = 4,198.44 × 1,645.10
  4. Step 4: Simplify right side
    3,042.35x = 6,906,853.64
  5. Step 5: Solve for x
    x = 6,906,853.64/3,042.35
  6. Step 6: Final answer
    x = 2,270.24

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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.