Home / 3,975.50-5,486.04-2,206.98

Finding the Fourth Proportional to 3,975.50, 5,486.04 and 2,206.98

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Solution

The fourth proportional to 3,975.50, 5,486.04 and 2,206.98 is: 3,045.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.50 : 5,486.04 = 2,206.98 : x
  2. Step 2: Convert to fraction form
    3,975.50/5,486.04 = 2,206.98/x
  3. Step 3: Cross multiply
    3,975.50x = 5,486.04 × 2,206.98
  4. Step 4: Simplify right side
    3,975.50x = 12,107,580.56
  5. Step 5: Solve for x
    x = 12,107,580.56/3,975.50
  6. Step 6: Final answer
    x = 3,045.55

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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.