Home / 3,893.46-5,839.32-1,120.14

Finding the Fourth Proportional to 3,893.46, 5,839.32 and 1,120.14

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Solution

The fourth proportional to 3,893.46, 5,839.32 and 1,120.14 is: 1,679.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.46 : 5,839.32 = 1,120.14 : x
  2. Step 2: Convert to fraction form
    3,893.46/5,839.32 = 1,120.14/x
  3. Step 3: Cross multiply
    3,893.46x = 5,839.32 × 1,120.14
  4. Step 4: Simplify right side
    3,893.46x = 6,540,855.90
  5. Step 5: Solve for x
    x = 6,540,855.90/3,893.46
  6. Step 6: Final answer
    x = 1,679.96

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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.