Home / 2,788.10-4,183.05-1,864.70

Finding the Fourth Proportional to 2,788.10, 4,183.05 and 1,864.70

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Solution

The fourth proportional to 2,788.10, 4,183.05 and 1,864.70 is: 2,797.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.10 : 4,183.05 = 1,864.70 : x
  2. Step 2: Convert to fraction form
    2,788.10/4,183.05 = 1,864.70/x
  3. Step 3: Cross multiply
    2,788.10x = 4,183.05 × 1,864.70
  4. Step 4: Simplify right side
    2,788.10x = 7,800,133.34
  5. Step 5: Solve for x
    x = 7,800,133.34/2,788.10
  6. Step 6: Final answer
    x = 2,797.65

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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.