Home / 3,431.54-4,735.32-2,015.12

Finding the Fourth Proportional to 3,431.54, 4,735.32 and 2,015.12

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Solution

The fourth proportional to 3,431.54, 4,735.32 and 2,015.12 is: 2,780.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.54 : 4,735.32 = 2,015.12 : x
  2. Step 2: Convert to fraction form
    3,431.54/4,735.32 = 2,015.12/x
  3. Step 3: Cross multiply
    3,431.54x = 4,735.32 × 2,015.12
  4. Step 4: Simplify right side
    3,431.54x = 9,542,238.04
  5. Step 5: Solve for x
    x = 9,542,238.04/3,431.54
  6. Step 6: Final answer
    x = 2,780.75

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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.