Home / 6,721.80-10,086.30-2,826.60

Finding the Fourth Proportional to 6,721.80, 10,086.30 and 2,826.60

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Solution

The fourth proportional to 6,721.80, 10,086.30 and 2,826.60 is: 4,241.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.80 : 10,086.30 = 2,826.60 : x
  2. Step 2: Convert to fraction form
    6,721.80/10,086.30 = 2,826.60/x
  3. Step 3: Cross multiply
    6,721.80x = 10,086.30 × 2,826.60
  4. Step 4: Simplify right side
    6,721.80x = 28,509,935.58
  5. Step 5: Solve for x
    x = 28,509,935.58/6,721.80
  6. Step 6: Final answer
    x = 4,241.41

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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.