Home / 2,719.29-4,080.93-1,240.18

Finding the Fourth Proportional to 2,719.29, 4,080.93 and 1,240.18

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Solution

The fourth proportional to 2,719.29, 4,080.93 and 1,240.18 is: 1,861.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.29 : 4,080.93 = 1,240.18 : x
  2. Step 2: Convert to fraction form
    2,719.29/4,080.93 = 1,240.18/x
  3. Step 3: Cross multiply
    2,719.29x = 4,080.93 × 1,240.18
  4. Step 4: Simplify right side
    2,719.29x = 5,061,087.77
  5. Step 5: Solve for x
    x = 5,061,087.77/2,719.29
  6. Step 6: Final answer
    x = 1,861.18

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.