Home / 3,705.12-5,112.96-2,049.12

Finding the Fourth Proportional to 3,705.12, 5,112.96 and 2,049.12

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Solution

The fourth proportional to 3,705.12, 5,112.96 and 2,049.12 is: 2,827.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,705.12 : 5,112.96 = 2,049.12 : x
  2. Step 2: Convert to fraction form
    3,705.12/5,112.96 = 2,049.12/x
  3. Step 3: Cross multiply
    3,705.12x = 5,112.96 × 2,049.12
  4. Step 4: Simplify right side
    3,705.12x = 10,477,068.60
  5. Step 5: Solve for x
    x = 10,477,068.60/3,705.12
  6. Step 6: Final answer
    x = 2,827.73

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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.