Home / 2,206.80-3,310.37-745.47

Finding the Fourth Proportional to 2,206.80, 3,310.37 and 745.47

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Solution

The fourth proportional to 2,206.80, 3,310.37 and 745.47 is: 1,118.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.80 : 3,310.37 = 745.47 : x
  2. Step 2: Convert to fraction form
    2,206.80/3,310.37 = 745.47/x
  3. Step 3: Cross multiply
    2,206.80x = 3,310.37 × 745.47
  4. Step 4: Simplify right side
    2,206.80x = 2,467,777.80
  5. Step 5: Solve for x
    x = 2,467,777.80/2,206.80
  6. Step 6: Final answer
    x = 1,118.26

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1.5x scale

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.