Home / 3,975.11-5,485.58-2,182.64

Finding the Fourth Proportional to 3,975.11, 5,485.58 and 2,182.64

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Solution

The fourth proportional to 3,975.11, 5,485.58 and 2,182.64 is: 3,011.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.11 : 5,485.58 = 2,182.64 : x
  2. Step 2: Convert to fraction form
    3,975.11/5,485.58 = 2,182.64/x
  3. Step 3: Cross multiply
    3,975.11x = 5,485.58 × 2,182.64
  4. Step 4: Simplify right side
    3,975.11x = 11,973,007.99
  5. Step 5: Solve for x
    x = 11,973,007.99/3,975.11
  6. Step 6: Final answer
    x = 3,011.99

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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.