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Finding the Fourth Proportional to 6,571.58, 9,858 and 2,189.36

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Solution

The fourth proportional to 6,571.58, 9,858 and 2,189.36 is: 3,284.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,571.58 : 9,858 = 2,189.36 : x
  2. Step 2: Convert to fraction form
    6,571.58/9,858 = 2,189.36/x
  3. Step 3: Cross multiply
    6,571.58x = 9,858 × 2,189.36
  4. Step 4: Simplify right side
    6,571.58x = 21,582,710.88
  5. Step 5: Solve for x
    x = 21,582,710.88/6,571.58
  6. Step 6: Final answer
    x = 3,284.25

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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.