Home / 3,975.49-5,485.92-2,207.10

Finding the Fourth Proportional to 3,975.49, 5,485.92 and 2,207.10

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Solution

The fourth proportional to 3,975.49, 5,485.92 and 2,207.10 is: 3,045.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.49 : 5,485.92 = 2,207.10 : x
  2. Step 2: Convert to fraction form
    3,975.49/5,485.92 = 2,207.10/x
  3. Step 3: Cross multiply
    3,975.49x = 5,485.92 × 2,207.10
  4. Step 4: Simplify right side
    3,975.49x = 12,107,974.03
  5. Step 5: Solve for x
    x = 12,107,974.03/3,975.49
  6. Step 6: Final answer
    x = 3,045.66

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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.