Home / 2,742.86-4,111.56-1,769.65

Finding the Fourth Proportional to 2,742.86, 4,111.56 and 1,769.65

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Solution

The fourth proportional to 2,742.86, 4,111.56 and 1,769.65 is: 2,652.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.86 : 4,111.56 = 1,769.65 : x
  2. Step 2: Convert to fraction form
    2,742.86/4,111.56 = 1,769.65/x
  3. Step 3: Cross multiply
    2,742.86x = 4,111.56 × 1,769.65
  4. Step 4: Simplify right side
    2,742.86x = 7,276,011.88
  5. Step 5: Solve for x
    x = 7,276,011.88/2,742.86
  6. Step 6: Final answer
    x = 2,652.71

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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.