Home / 4,043.20-6,057.12-3,121.60

Finding the Fourth Proportional to 4,043.20, 6,057.12 and 3,121.60

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Solution

The fourth proportional to 4,043.20, 6,057.12 and 3,121.60 is: 4,676.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,043.20 : 6,057.12 = 3,121.60 : x
  2. Step 2: Convert to fraction form
    4,043.20/6,057.12 = 3,121.60/x
  3. Step 3: Cross multiply
    4,043.20x = 6,057.12 × 3,121.60
  4. Step 4: Simplify right side
    4,043.20x = 18,907,905.79
  5. Step 5: Solve for x
    x = 18,907,905.79/4,043.20
  6. Step 6: Final answer
    x = 4,676.47

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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.