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Finding the Third Proportional to 4,421.25 and 5,811.75

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Solution

The third proportional to 4,421.25 and 5,811.75 is: 7,639.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,421.25 : 5,811.75 = 5,811.75 : x
  2. Step 2: Convert to fraction form
    4,421.25/5,811.75 = 5,811.75/x
  3. Step 3: Cross multiply
    4,421.25x = 5,811.75 × 5,811.75
  4. Step 4: Simplify right side
    4,421.25x = 33,776,438.06
  5. Step 5: Solve for x
    x = 33,776,438.06/4,421.25
  6. Step 6: Final answer
    x = 7,639.57

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These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.