Home / 4,114.64-6,172.60-1,378

Finding the Fourth Proportional to 4,114.64, 6,172.60 and 1,378

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Solution

The fourth proportional to 4,114.64, 6,172.60 and 1,378 is: 2,067.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,114.64 : 6,172.60 = 1,378 : x
  2. Step 2: Convert to fraction form
    4,114.64/6,172.60 = 1,378/x
  3. Step 3: Cross multiply
    4,114.64x = 6,172.60 × 1,378
  4. Step 4: Simplify right side
    4,114.64x = 8,505,842.80
  5. Step 5: Solve for x
    x = 8,505,842.80/4,114.64
  6. Step 6: Final answer
    x = 2,067.21

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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.