Home / 2,789.86-3,850.01-1,531.02

Finding the Fourth Proportional to 2,789.86, 3,850.01 and 1,531.02

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Solution

The fourth proportional to 2,789.86, 3,850.01 and 1,531.02 is: 2,112.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.86 : 3,850.01 = 1,531.02 : x
  2. Step 2: Convert to fraction form
    2,789.86/3,850.01 = 1,531.02/x
  3. Step 3: Cross multiply
    2,789.86x = 3,850.01 × 1,531.02
  4. Step 4: Simplify right side
    2,789.86x = 5,894,434.66
  5. Step 5: Solve for x
    x = 5,894,434.66/2,789.86
  6. Step 6: Final answer
    x = 2,112.81

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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.