Home / 5,475.23-8,215.56-2,189.25

Finding the Fourth Proportional to 5,475.23, 8,215.56 and 2,189.25

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Solution

The fourth proportional to 5,475.23, 8,215.56 and 2,189.25 is: 3,284.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.23 : 8,215.56 = 2,189.25 : x
  2. Step 2: Convert to fraction form
    5,475.23/8,215.56 = 2,189.25/x
  3. Step 3: Cross multiply
    5,475.23x = 8,215.56 × 2,189.25
  4. Step 4: Simplify right side
    5,475.23x = 17,985,914.73
  5. Step 5: Solve for x
    x = 17,985,914.73/5,475.23
  6. Step 6: Final answer
    x = 3,284.96

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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.