Home / 3,679.41-5,077.87-2,107.54

Finding the Fourth Proportional to 3,679.41, 5,077.87 and 2,107.54

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Solution

The fourth proportional to 3,679.41, 5,077.87 and 2,107.54 is: 2,908.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.41 : 5,077.87 = 2,107.54 : x
  2. Step 2: Convert to fraction form
    3,679.41/5,077.87 = 2,107.54/x
  3. Step 3: Cross multiply
    3,679.41x = 5,077.87 × 2,107.54
  4. Step 4: Simplify right side
    3,679.41x = 10,701,788.75
  5. Step 5: Solve for x
    x = 10,701,788.75/3,679.41
  6. Step 6: Final answer
    x = 2,908.56

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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.