Home / 2,790.88-4,179.84-2,095.36

Finding the Fourth Proportional to 2,790.88, 4,179.84 and 2,095.36

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Solution

The fourth proportional to 2,790.88, 4,179.84 and 2,095.36 is: 3,138.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.88 : 4,179.84 = 2,095.36 : x
  2. Step 2: Convert to fraction form
    2,790.88/4,179.84 = 2,095.36/x
  3. Step 3: Cross multiply
    2,790.88x = 4,179.84 × 2,095.36
  4. Step 4: Simplify right side
    2,790.88x = 8,758,269.54
  5. Step 5: Solve for x
    x = 8,758,269.54/2,790.88
  6. Step 6: Final answer
    x = 3,138.17

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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.