Home / 2,675.78-4,013.55-2,209.22

Finding the Fourth Proportional to 2,675.78, 4,013.55 and 2,209.22

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Solution

The fourth proportional to 2,675.78, 4,013.55 and 2,209.22 is: 3,313.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.78 : 4,013.55 = 2,209.22 : x
  2. Step 2: Convert to fraction form
    2,675.78/4,013.55 = 2,209.22/x
  3. Step 3: Cross multiply
    2,675.78x = 4,013.55 × 2,209.22
  4. Step 4: Simplify right side
    2,675.78x = 8,866,814.93
  5. Step 5: Solve for x
    x = 8,866,814.93/2,675.78
  6. Step 6: Final answer
    x = 3,313.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.