Home / 6,112.69-8,435.61-3,318.19

Finding the Fourth Proportional to 6,112.69, 8,435.61 and 3,318.19

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Solution

The fourth proportional to 6,112.69, 8,435.61 and 3,318.19 is: 4,579.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,112.69 : 8,435.61 = 3,318.19 : x
  2. Step 2: Convert to fraction form
    6,112.69/8,435.61 = 3,318.19/x
  3. Step 3: Cross multiply
    6,112.69x = 8,435.61 × 3,318.19
  4. Step 4: Simplify right side
    6,112.69x = 27,990,956.75
  5. Step 5: Solve for x
    x = 27,990,956.75/6,112.69
  6. Step 6: Final answer
    x = 4,579.16

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Half scale
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Double scale
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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.