Home / 2,751.45-4,120.79-2,730.96

Finding the Fourth Proportional to 2,751.45, 4,120.79 and 2,730.96

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Solution

The fourth proportional to 2,751.45, 4,120.79 and 2,730.96 is: 4,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.45 : 4,120.79 = 2,730.96 : x
  2. Step 2: Convert to fraction form
    2,751.45/4,120.79 = 2,730.96/x
  3. Step 3: Cross multiply
    2,751.45x = 4,120.79 × 2,730.96
  4. Step 4: Simplify right side
    2,751.45x = 11,253,712.66
  5. Step 5: Solve for x
    x = 11,253,712.66/2,751.45
  6. Step 6: Final answer
    x = 4,090.10

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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.