Home / 1,941.20-2,678.25-1,101.86

Finding the Fourth Proportional to 1,941.20, 2,678.25 and 1,101.86

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Solution

The fourth proportional to 1,941.20, 2,678.25 and 1,101.86 is: 1,520.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.20 : 2,678.25 = 1,101.86 : x
  2. Step 2: Convert to fraction form
    1,941.20/2,678.25 = 1,101.86/x
  3. Step 3: Cross multiply
    1,941.20x = 2,678.25 × 1,101.86
  4. Step 4: Simplify right side
    1,941.20x = 2,951,056.55
  5. Step 5: Solve for x
    x = 2,951,056.55/1,941.20
  6. Step 6: Final answer
    x = 1,520.22

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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.