Home / 6,112.38-8,435.09-3,317.88

Finding the Fourth Proportional to 6,112.38, 8,435.09 and 3,317.88

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Solution

The fourth proportional to 6,112.38, 8,435.09 and 3,317.88 is: 4,578.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,112.38 : 8,435.09 = 3,317.88 : x
  2. Step 2: Convert to fraction form
    6,112.38/8,435.09 = 3,317.88/x
  3. Step 3: Cross multiply
    6,112.38x = 8,435.09 × 3,317.88
  4. Step 4: Simplify right side
    6,112.38x = 27,986,616.41
  5. Step 5: Solve for x
    x = 27,986,616.41/6,112.38
  6. Step 6: Final answer
    x = 4,578.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.