Home / 4,048.80-6,109.06-3,991.20

Finding the Fourth Proportional to 4,048.80, 6,109.06 and 3,991.20

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Solution

The fourth proportional to 4,048.80, 6,109.06 and 3,991.20 is: 6,022.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,048.80 : 6,109.06 = 3,991.20 : x
  2. Step 2: Convert to fraction form
    4,048.80/6,109.06 = 3,991.20/x
  3. Step 3: Cross multiply
    4,048.80x = 6,109.06 × 3,991.20
  4. Step 4: Simplify right side
    4,048.80x = 24,382,480.27
  5. Step 5: Solve for x
    x = 24,382,480.27/4,048.80
  6. Step 6: Final answer
    x = 6,022.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.