Home / 5,208.45-7,187.67-2,850.62

Finding the Fourth Proportional to 5,208.45, 7,187.67 and 2,850.62

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Solution

The fourth proportional to 5,208.45, 7,187.67 and 2,850.62 is: 3,933.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.45 : 7,187.67 = 2,850.62 : x
  2. Step 2: Convert to fraction form
    5,208.45/7,187.67 = 2,850.62/x
  3. Step 3: Cross multiply
    5,208.45x = 7,187.67 × 2,850.62
  4. Step 4: Simplify right side
    5,208.45x = 20,489,279.92
  5. Step 5: Solve for x
    x = 20,489,279.92/5,208.45
  6. Step 6: Final answer
    x = 3,933.85

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1.5x scale

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.