Home / 4,877.26-6,728.80-3,199.60

Finding the Fourth Proportional to 4,877.26, 6,728.80 and 3,199.60

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Solution

The fourth proportional to 4,877.26, 6,728.80 and 3,199.60 is: 4,414.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.26 : 6,728.80 = 3,199.60 : x
  2. Step 2: Convert to fraction form
    4,877.26/6,728.80 = 3,199.60/x
  3. Step 3: Cross multiply
    4,877.26x = 6,728.80 × 3,199.60
  4. Step 4: Simplify right side
    4,877.26x = 21,529,434.84
  5. Step 5: Solve for x
    x = 21,529,434.84/4,877.26
  6. Step 6: Final answer
    x = 4,414.25

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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.