Home / 2,179.41-3,007.68-1,222.41

Finding the Fourth Proportional to 2,179.41, 3,007.68 and 1,222.41

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Solution

The fourth proportional to 2,179.41, 3,007.68 and 1,222.41 is: 1,686.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.41 : 3,007.68 = 1,222.41 : x
  2. Step 2: Convert to fraction form
    2,179.41/3,007.68 = 1,222.41/x
  3. Step 3: Cross multiply
    2,179.41x = 3,007.68 × 1,222.41
  4. Step 4: Simplify right side
    2,179.41x = 3,676,614.76
  5. Step 5: Solve for x
    x = 3,676,614.76/2,179.41
  6. Step 6: Final answer
    x = 1,686.98

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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.