Home / 6,176.80-8,515.20-3,817.60

Finding the Fourth Proportional to 6,176.80, 8,515.20 and 3,817.60

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Solution

The fourth proportional to 6,176.80, 8,515.20 and 3,817.60 is: 5,262.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,176.80 : 8,515.20 = 3,817.60 : x
  2. Step 2: Convert to fraction form
    6,176.80/8,515.20 = 3,817.60/x
  3. Step 3: Cross multiply
    6,176.80x = 8,515.20 × 3,817.60
  4. Step 4: Simplify right side
    6,176.80x = 32,507,627.52
  5. Step 5: Solve for x
    x = 32,507,627.52/6,176.80
  6. Step 6: Final answer
    x = 5,262.86

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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.