Home / 3,850.37-5,318.78-2,977.19

Finding the Fourth Proportional to 3,850.37, 5,318.78 and 2,977.19

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Solution

The fourth proportional to 3,850.37, 5,318.78 and 2,977.19 is: 4,112.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.37 : 5,318.78 = 2,977.19 : x
  2. Step 2: Convert to fraction form
    3,850.37/5,318.78 = 2,977.19/x
  3. Step 3: Cross multiply
    3,850.37x = 5,318.78 × 2,977.19
  4. Step 4: Simplify right side
    3,850.37x = 15,834,977.15
  5. Step 5: Solve for x
    x = 15,834,977.15/3,850.37
  6. Step 6: Final answer
    x = 4,112.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.