Home / 2,179.12-3,008.28-1,589.44

Finding the Fourth Proportional to 2,179.12, 3,008.28 and 1,589.44

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Solution

The fourth proportional to 2,179.12, 3,008.28 and 1,589.44 is: 2,194.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.12 : 3,008.28 = 1,589.44 : x
  2. Step 2: Convert to fraction form
    2,179.12/3,008.28 = 1,589.44/x
  3. Step 3: Cross multiply
    2,179.12x = 3,008.28 × 1,589.44
  4. Step 4: Simplify right side
    2,179.12x = 4,781,480.56
  5. Step 5: Solve for x
    x = 4,781,480.56/2,179.12
  6. Step 6: Final answer
    x = 2,194.23

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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.