Home / 6,571.78-9,857.68-2,189.58

Finding the Fourth Proportional to 6,571.78, 9,857.68 and 2,189.58

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Solution

The fourth proportional to 6,571.78, 9,857.68 and 2,189.58 is: 3,284.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,571.78 : 9,857.68 = 2,189.58 : x
  2. Step 2: Convert to fraction form
    6,571.78/9,857.68 = 2,189.58/x
  3. Step 3: Cross multiply
    6,571.78x = 9,857.68 × 2,189.58
  4. Step 4: Simplify right side
    6,571.78x = 21,584,178.97
  5. Step 5: Solve for x
    x = 21,584,178.97/6,571.78
  6. Step 6: Final answer
    x = 3,284.37

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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.