Home / 3,128.58-4,314.54-2,007.54

Finding the Fourth Proportional to 3,128.58, 4,314.54 and 2,007.54

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Solution

The fourth proportional to 3,128.58, 4,314.54 and 2,007.54 is: 2,768.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.58 : 4,314.54 = 2,007.54 : x
  2. Step 2: Convert to fraction form
    3,128.58/4,314.54 = 2,007.54/x
  3. Step 3: Cross multiply
    3,128.58x = 4,314.54 × 2,007.54
  4. Step 4: Simplify right side
    3,128.58x = 8,661,611.63
  5. Step 5: Solve for x
    x = 8,661,611.63/3,128.58
  6. Step 6: Final answer
    x = 2,768.54

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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.