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Finding the Fourth Proportional to 6,571.56, 9,857.40 and 2,189

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Solution

The fourth proportional to 6,571.56, 9,857.40 and 2,189 is: 3,283.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,571.56 : 9,857.40 = 2,189 : x
  2. Step 2: Convert to fraction form
    6,571.56/9,857.40 = 2,189/x
  3. Step 3: Cross multiply
    6,571.56x = 9,857.40 × 2,189
  4. Step 4: Simplify right side
    6,571.56x = 21,577,848.60
  5. Step 5: Solve for x
    x = 21,577,848.60/6,571.56
  6. Step 6: Final answer
    x = 3,283.52

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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.