Home / 4,138.40-6,193.20-3,792.80

Finding the Fourth Proportional to 4,138.40, 6,193.20 and 3,792.80

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Solution

The fourth proportional to 4,138.40, 6,193.20 and 3,792.80 is: 5,676.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.40 : 6,193.20 = 3,792.80 : x
  2. Step 2: Convert to fraction form
    4,138.40/6,193.20 = 3,792.80/x
  3. Step 3: Cross multiply
    4,138.40x = 6,193.20 × 3,792.80
  4. Step 4: Simplify right side
    4,138.40x = 23,489,568.96
  5. Step 5: Solve for x
    x = 23,489,568.96/4,138.40
  6. Step 6: Final answer
    x = 5,676.00

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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.