Home / 2,788.73-4,182.79-1,864.87

Finding the Fourth Proportional to 2,788.73, 4,182.79 and 1,864.87

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Solution

The fourth proportional to 2,788.73, 4,182.79 and 1,864.87 is: 2,797.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.73 : 4,182.79 = 1,864.87 : x
  2. Step 2: Convert to fraction form
    2,788.73/4,182.79 = 1,864.87/x
  3. Step 3: Cross multiply
    2,788.73x = 4,182.79 × 1,864.87
  4. Step 4: Simplify right side
    2,788.73x = 7,800,371.49
  5. Step 5: Solve for x
    x = 7,800,371.49/2,788.73
  6. Step 6: Final answer
    x = 2,797.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.