Home / 6,917.72-10,375.04-1,986.26

Finding the Fourth Proportional to 6,917.72, 10,375.04 and 1,986.26

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Solution

The fourth proportional to 6,917.72, 10,375.04 and 1,986.26 is: 2,978.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,917.72 : 10,375.04 = 1,986.26 : x
  2. Step 2: Convert to fraction form
    6,917.72/10,375.04 = 1,986.26/x
  3. Step 3: Cross multiply
    6,917.72x = 10,375.04 × 1,986.26
  4. Step 4: Simplify right side
    6,917.72x = 20,607,480.04
  5. Step 5: Solve for x
    x = 20,607,480.04/6,917.72
  6. Step 6: Final answer
    x = 2,978.94

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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.