Home / 6,112.71-8,435.48-3,318.21

Finding the Fourth Proportional to 6,112.71, 8,435.48 and 3,318.21

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Solution

The fourth proportional to 6,112.71, 8,435.48 and 3,318.21 is: 4,579.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,112.71 : 8,435.48 = 3,318.21 : x
  2. Step 2: Convert to fraction form
    6,112.71/8,435.48 = 3,318.21/x
  3. Step 3: Cross multiply
    6,112.71x = 8,435.48 × 3,318.21
  4. Step 4: Simplify right side
    6,112.71x = 27,990,677.50
  5. Step 5: Solve for x
    x = 27,990,677.50/6,112.71
  6. Step 6: Final answer
    x = 4,579.09

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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.