Home / 6,986.27-10,479.39-2,055.90

Finding the Fourth Proportional to 6,986.27, 10,479.39 and 2,055.90

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Solution

The fourth proportional to 6,986.27, 10,479.39 and 2,055.90 is: 3,083.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.27 : 10,479.39 = 2,055.90 : x
  2. Step 2: Convert to fraction form
    6,986.27/10,479.39 = 2,055.90/x
  3. Step 3: Cross multiply
    6,986.27x = 10,479.39 × 2,055.90
  4. Step 4: Simplify right side
    6,986.27x = 21,544,577.90
  5. Step 5: Solve for x
    x = 21,544,577.90/6,986.27
  6. Step 6: Final answer
    x = 3,083.85

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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.