Home / 2,789.68-3,849.75-1,530.73

Finding the Fourth Proportional to 2,789.68, 3,849.75 and 1,530.73

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Solution

The fourth proportional to 2,789.68, 3,849.75 and 1,530.73 is: 2,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.68 : 3,849.75 = 1,530.73 : x
  2. Step 2: Convert to fraction form
    2,789.68/3,849.75 = 1,530.73/x
  3. Step 3: Cross multiply
    2,789.68x = 3,849.75 × 1,530.73
  4. Step 4: Simplify right side
    2,789.68x = 5,892,927.82
  5. Step 5: Solve for x
    x = 5,892,927.82/2,789.68
  6. Step 6: Final answer
    x = 2,112.40

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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.