Home / 8,180.42-12,272.44-2,986.28

Finding the Fourth Proportional to 8,180.42, 12,272.44 and 2,986.28

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Solution

The fourth proportional to 8,180.42, 12,272.44 and 2,986.28 is: 4,480.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.42 : 12,272.44 = 2,986.28 : x
  2. Step 2: Convert to fraction form
    8,180.42/12,272.44 = 2,986.28/x
  3. Step 3: Cross multiply
    8,180.42x = 12,272.44 × 2,986.28
  4. Step 4: Simplify right side
    8,180.42x = 36,648,942.12
  5. Step 5: Solve for x
    x = 36,648,942.12/8,180.42
  6. Step 6: Final answer
    x = 4,480.08

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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.