Home / 3,076.80-4,604.40-2,817.60

Finding the Fourth Proportional to 3,076.80, 4,604.40 and 2,817.60

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Solution

The fourth proportional to 3,076.80, 4,604.40 and 2,817.60 is: 4,216.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.80 : 4,604.40 = 2,817.60 : x
  2. Step 2: Convert to fraction form
    3,076.80/4,604.40 = 2,817.60/x
  3. Step 3: Cross multiply
    3,076.80x = 4,604.40 × 2,817.60
  4. Step 4: Simplify right side
    3,076.80x = 12,973,357.44
  5. Step 5: Solve for x
    x = 12,973,357.44/3,076.80
  6. Step 6: Final answer
    x = 4,216.51

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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.