Home / 3,839.14-5,758.62-1,989.64

Finding the Fourth Proportional to 3,839.14, 5,758.62 and 1,989.64

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Solution

The fourth proportional to 3,839.14, 5,758.62 and 1,989.64 is: 2,984.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.14 : 5,758.62 = 1,989.64 : x
  2. Step 2: Convert to fraction form
    3,839.14/5,758.62 = 1,989.64/x
  3. Step 3: Cross multiply
    3,839.14x = 5,758.62 × 1,989.64
  4. Step 4: Simplify right side
    3,839.14x = 11,457,580.70
  5. Step 5: Solve for x
    x = 11,457,580.70/3,839.14
  6. Step 6: Final answer
    x = 2,984.41

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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.