Home / 2,216.91-3,326.13-1,120.35

Finding the Fourth Proportional to 2,216.91, 3,326.13 and 1,120.35

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Solution

The fourth proportional to 2,216.91, 3,326.13 and 1,120.35 is: 1,680.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.91 : 3,326.13 = 1,120.35 : x
  2. Step 2: Convert to fraction form
    2,216.91/3,326.13 = 1,120.35/x
  3. Step 3: Cross multiply
    2,216.91x = 3,326.13 × 1,120.35
  4. Step 4: Simplify right side
    2,216.91x = 3,726,429.75
  5. Step 5: Solve for x
    x = 3,726,429.75/2,216.91
  6. Step 6: Final answer
    x = 1,680.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.