Home / 2,790.21-4,183.79-1,802.89

Finding the Fourth Proportional to 2,790.21, 4,183.79 and 1,802.89

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Solution

The fourth proportional to 2,790.21, 4,183.79 and 1,802.89 is: 2,703.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.21 : 4,183.79 = 1,802.89 : x
  2. Step 2: Convert to fraction form
    2,790.21/4,183.79 = 1,802.89/x
  3. Step 3: Cross multiply
    2,790.21x = 4,183.79 × 1,802.89
  4. Step 4: Simplify right side
    2,790.21x = 7,542,892.23
  5. Step 5: Solve for x
    x = 7,542,892.23/2,790.21
  6. Step 6: Final answer
    x = 2,703.34

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1.5x scale

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.