Home / 2,179.30-3,007.49-1,283.11

Finding the Fourth Proportional to 2,179.30, 3,007.49 and 1,283.11

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Solution

The fourth proportional to 2,179.30, 3,007.49 and 1,283.11 is: 1,770.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.30 : 3,007.49 = 1,283.11 : x
  2. Step 2: Convert to fraction form
    2,179.30/3,007.49 = 1,283.11/x
  3. Step 3: Cross multiply
    2,179.30x = 3,007.49 × 1,283.11
  4. Step 4: Simplify right side
    2,179.30x = 3,858,940.49
  5. Step 5: Solve for x
    x = 3,858,940.49/2,179.30
  6. Step 6: Final answer
    x = 1,770.72

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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.