Home / 3,042.28-4,198.35-1,645.03

Finding the Fourth Proportional to 3,042.28, 4,198.35 and 1,645.03

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Solution

The fourth proportional to 3,042.28, 4,198.35 and 1,645.03 is: 2,270.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.28 : 4,198.35 = 1,645.03 : x
  2. Step 2: Convert to fraction form
    3,042.28/4,198.35 = 1,645.03/x
  3. Step 3: Cross multiply
    3,042.28x = 4,198.35 × 1,645.03
  4. Step 4: Simplify right side
    3,042.28x = 6,906,411.70
  5. Step 5: Solve for x
    x = 6,906,411.70/3,042.28
  6. Step 6: Final answer
    x = 2,270.14

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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.