Home / 5,188.87-7,783.78-2,068.12

Finding the Fourth Proportional to 5,188.87, 7,783.78 and 2,068.12

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Solution

The fourth proportional to 5,188.87, 7,783.78 and 2,068.12 is: 3,102.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.87 : 7,783.78 = 2,068.12 : x
  2. Step 2: Convert to fraction form
    5,188.87/7,783.78 = 2,068.12/x
  3. Step 3: Cross multiply
    5,188.87x = 7,783.78 × 2,068.12
  4. Step 4: Simplify right side
    5,188.87x = 16,097,791.09
  5. Step 5: Solve for x
    x = 16,097,791.09/5,188.87
  6. Step 6: Final answer
    x = 3,102.37

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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.