Home / 3,880.20-5,820.54-1,930.44

Finding the Fourth Proportional to 3,880.20, 5,820.54 and 1,930.44

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Solution

The fourth proportional to 3,880.20, 5,820.54 and 1,930.44 is: 2,895.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.20 : 5,820.54 = 1,930.44 : x
  2. Step 2: Convert to fraction form
    3,880.20/5,820.54 = 1,930.44/x
  3. Step 3: Cross multiply
    3,880.20x = 5,820.54 × 1,930.44
  4. Step 4: Simplify right side
    3,880.20x = 11,236,203.24
  5. Step 5: Solve for x
    x = 11,236,203.24/3,880.20
  6. Step 6: Final answer
    x = 2,895.78

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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.