Home / 2,379.09-3,280.97-2,042.88

Finding the Fourth Proportional to 2,379.09, 3,280.97 and 2,042.88

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Solution

The fourth proportional to 2,379.09, 3,280.97 and 2,042.88 is: 2,817.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.09 : 3,280.97 = 2,042.88 : x
  2. Step 2: Convert to fraction form
    2,379.09/3,280.97 = 2,042.88/x
  3. Step 3: Cross multiply
    2,379.09x = 3,280.97 × 2,042.88
  4. Step 4: Simplify right side
    2,379.09x = 6,702,636.58
  5. Step 5: Solve for x
    x = 6,702,636.58/2,379.09
  6. Step 6: Final answer
    x = 2,817.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.