Home / 3,022.12-4,170.66-1,976.20

Finding the Fourth Proportional to 3,022.12, 4,170.66 and 1,976.20

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Solution

The fourth proportional to 3,022.12, 4,170.66 and 1,976.20 is: 2,727.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,022.12 : 4,170.66 = 1,976.20 : x
  2. Step 2: Convert to fraction form
    3,022.12/4,170.66 = 1,976.20/x
  3. Step 3: Cross multiply
    3,022.12x = 4,170.66 × 1,976.20
  4. Step 4: Simplify right side
    3,022.12x = 8,242,058.29
  5. Step 5: Solve for x
    x = 8,242,058.29/3,022.12
  6. Step 6: Final answer
    x = 2,727.24

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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.