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Finding the Fourth Proportional to 3,956.45, 5,460.01 and 2,188.22

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Solution

The fourth proportional to 3,956.45, 5,460.01 and 2,188.22 is: 3,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.45 : 5,460.01 = 2,188.22 : x
  2. Step 2: Convert to fraction form
    3,956.45/5,460.01 = 2,188.22/x
  3. Step 3: Cross multiply
    3,956.45x = 5,460.01 × 2,188.22
  4. Step 4: Simplify right side
    3,956.45x = 11,947,670.31
  5. Step 5: Solve for x
    x = 11,947,670.31/3,956.45
  6. Step 6: Final answer
    x = 3,019.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.