Home / 3,343.20-5,015.60-1,394.32

Finding the Fourth Proportional to 3,343.20, 5,015.60 and 1,394.32

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Solution

The fourth proportional to 3,343.20, 5,015.60 and 1,394.32 is: 2,091.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,343.20 : 5,015.60 = 1,394.32 : x
  2. Step 2: Convert to fraction form
    3,343.20/5,015.60 = 1,394.32/x
  3. Step 3: Cross multiply
    3,343.20x = 5,015.60 × 1,394.32
  4. Step 4: Simplify right side
    3,343.20x = 6,993,351.39
  5. Step 5: Solve for x
    x = 6,993,351.39/3,343.20
  6. Step 6: Final answer
    x = 2,091.81

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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.