Home / 3,222.72-4,444.84-2,160.14

Finding the Fourth Proportional to 3,222.72, 4,444.84 and 2,160.14

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Solution

The fourth proportional to 3,222.72, 4,444.84 and 2,160.14 is: 2,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.72 : 4,444.84 = 2,160.14 : x
  2. Step 2: Convert to fraction form
    3,222.72/4,444.84 = 2,160.14/x
  3. Step 3: Cross multiply
    3,222.72x = 4,444.84 × 2,160.14
  4. Step 4: Simplify right side
    3,222.72x = 9,601,457.15
  5. Step 5: Solve for x
    x = 9,601,457.15/3,222.72
  6. Step 6: Final answer
    x = 2,979.30

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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.