Home / 2,790.29-4,181.50-2,202.70

Finding the Fourth Proportional to 2,790.29, 4,181.50 and 2,202.70

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Solution

The fourth proportional to 2,790.29, 4,181.50 and 2,202.70 is: 3,300.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.29 : 4,181.50 = 2,202.70 : x
  2. Step 2: Convert to fraction form
    2,790.29/4,181.50 = 2,202.70/x
  3. Step 3: Cross multiply
    2,790.29x = 4,181.50 × 2,202.70
  4. Step 4: Simplify right side
    2,790.29x = 9,210,590.05
  5. Step 5: Solve for x
    x = 9,210,590.05/2,790.29
  6. Step 6: Final answer
    x = 3,300.94

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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.