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Finding the Fourth Proportional to 6,571.79, 9,857.78 and 2,189.27

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Solution

The fourth proportional to 6,571.79, 9,857.78 and 2,189.27 is: 3,283.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,571.79 : 9,857.78 = 2,189.27 : x
  2. Step 2: Convert to fraction form
    6,571.79/9,857.78 = 2,189.27/x
  3. Step 3: Cross multiply
    6,571.79x = 9,857.78 × 2,189.27
  4. Step 4: Simplify right side
    6,571.79x = 21,581,281.79
  5. Step 5: Solve for x
    x = 21,581,281.79/6,571.79
  6. Step 6: Final answer
    x = 3,283.93

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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.