Home / 2,751.33-4,127.01-1,289.70

Finding the Fourth Proportional to 2,751.33, 4,127.01 and 1,289.70

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Solution

The fourth proportional to 2,751.33, 4,127.01 and 1,289.70 is: 1,934.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.33 : 4,127.01 = 1,289.70 : x
  2. Step 2: Convert to fraction form
    2,751.33/4,127.01 = 1,289.70/x
  3. Step 3: Cross multiply
    2,751.33x = 4,127.01 × 1,289.70
  4. Step 4: Simplify right side
    2,751.33x = 5,322,604.80
  5. Step 5: Solve for x
    x = 5,322,604.80/2,751.33
  6. Step 6: Final answer
    x = 1,934.56

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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.