Home / 6,878.68-10,318.56-3,414.04

Finding the Fourth Proportional to 6,878.68, 10,318.56 and 3,414.04

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Solution

The fourth proportional to 6,878.68, 10,318.56 and 3,414.04 is: 5,121.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878.68 : 10,318.56 = 3,414.04 : x
  2. Step 2: Convert to fraction form
    6,878.68/10,318.56 = 3,414.04/x
  3. Step 3: Cross multiply
    6,878.68x = 10,318.56 × 3,414.04
  4. Step 4: Simplify right side
    6,878.68x = 35,227,976.58
  5. Step 5: Solve for x
    x = 35,227,976.58/6,878.68
  6. Step 6: Final answer
    x = 5,121.33

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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.