Home / 3,994.69-5,512.43-2,315.97

Finding the Fourth Proportional to 3,994.69, 5,512.43 and 2,315.97

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Solution

The fourth proportional to 3,994.69, 5,512.43 and 2,315.97 is: 3,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.69 : 5,512.43 = 2,315.97 : x
  2. Step 2: Convert to fraction form
    3,994.69/5,512.43 = 2,315.97/x
  3. Step 3: Cross multiply
    3,994.69x = 5,512.43 × 2,315.97
  4. Step 4: Simplify right side
    3,994.69x = 12,766,622.51
  5. Step 5: Solve for x
    x = 12,766,622.51/3,994.69
  6. Step 6: Final answer
    x = 3,195.90

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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.