Home / 3,975.08-5,485.68-2,206.64

Finding the Fourth Proportional to 3,975.08, 5,485.68 and 2,206.64

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Solution

The fourth proportional to 3,975.08, 5,485.68 and 2,206.64 is: 3,045.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.08 : 5,485.68 = 2,206.64 : x
  2. Step 2: Convert to fraction form
    3,975.08/5,485.68 = 2,206.64/x
  3. Step 3: Cross multiply
    3,975.08x = 5,485.68 × 2,206.64
  4. Step 4: Simplify right side
    3,975.08x = 12,104,920.92
  5. Step 5: Solve for x
    x = 12,104,920.92/3,975.08
  6. Step 6: Final answer
    x = 3,045.20

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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.