Home / 2,179.44-3,008.80-1,680.96

Finding the Fourth Proportional to 2,179.44, 3,008.80 and 1,680.96

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Solution

The fourth proportional to 2,179.44, 3,008.80 and 1,680.96 is: 2,320.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.44 : 3,008.80 = 1,680.96 : x
  2. Step 2: Convert to fraction form
    2,179.44/3,008.80 = 1,680.96/x
  3. Step 3: Cross multiply
    2,179.44x = 3,008.80 × 1,680.96
  4. Step 4: Simplify right side
    2,179.44x = 5,057,672.45
  5. Step 5: Solve for x
    x = 5,057,672.45/2,179.44
  6. Step 6: Final answer
    x = 2,320.63

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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.