Home / 6,214.12-9,319.72-3,986.21

Finding the Fourth Proportional to 6,214.12, 9,319.72 and 3,986.21

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Solution

The fourth proportional to 6,214.12, 9,319.72 and 3,986.21 is: 5,978.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,214.12 : 9,319.72 = 3,986.21 : x
  2. Step 2: Convert to fraction form
    6,214.12/9,319.72 = 3,986.21/x
  3. Step 3: Cross multiply
    6,214.12x = 9,319.72 × 3,986.21
  4. Step 4: Simplify right side
    6,214.12x = 37,150,361.06
  5. Step 5: Solve for x
    x = 37,150,361.06/6,214.12
  6. Step 6: Final answer
    x = 5,978.38

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1.5x scale

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.