Home / 6,318.42-8,717.67-4,080.39

Finding the Fourth Proportional to 6,318.42, 8,717.67 and 4,080.39

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Solution

The fourth proportional to 6,318.42, 8,717.67 and 4,080.39 is: 5,629.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.42 : 8,717.67 = 4,080.39 : x
  2. Step 2: Convert to fraction form
    6,318.42/8,717.67 = 4,080.39/x
  3. Step 3: Cross multiply
    6,318.42x = 8,717.67 × 4,080.39
  4. Step 4: Simplify right side
    6,318.42x = 35,571,493.49
  5. Step 5: Solve for x
    x = 35,571,493.49/6,318.42
  6. Step 6: Final answer
    x = 5,629.81

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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.