Home / 6,172.75-8,518.41-3,378.25

Finding the Fourth Proportional to 6,172.75, 8,518.41 and 3,378.25

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Solution

The fourth proportional to 6,172.75, 8,518.41 and 3,378.25 is: 4,661.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.75 : 8,518.41 = 3,378.25 : x
  2. Step 2: Convert to fraction form
    6,172.75/8,518.41 = 3,378.25/x
  3. Step 3: Cross multiply
    6,172.75x = 8,518.41 × 3,378.25
  4. Step 4: Simplify right side
    6,172.75x = 28,777,318.58
  5. Step 5: Solve for x
    x = 28,777,318.58/6,172.75
  6. Step 6: Final answer
    x = 4,661.99

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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.