Home / 2,789.89-3,850.58-1,845.72

Finding the Fourth Proportional to 2,789.89, 3,850.58 and 1,845.72

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Solution

The fourth proportional to 2,789.89, 3,850.58 and 1,845.72 is: 2,547.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.89 : 3,850.58 = 1,845.72 : x
  2. Step 2: Convert to fraction form
    2,789.89/3,850.58 = 1,845.72/x
  3. Step 3: Cross multiply
    2,789.89x = 3,850.58 × 1,845.72
  4. Step 4: Simplify right side
    2,789.89x = 7,107,097.13
  5. Step 5: Solve for x
    x = 7,107,097.13/2,789.89
  6. Step 6: Final answer
    x = 2,547.45

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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.