Home / 2,881.15-3,974.60-2,769.37

Finding the Fourth Proportional to 2,881.15, 3,974.60 and 2,769.37

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Solution

The fourth proportional to 2,881.15, 3,974.60 and 2,769.37 is: 3,820.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.15 : 3,974.60 = 2,769.37 : x
  2. Step 2: Convert to fraction form
    2,881.15/3,974.60 = 2,769.37/x
  3. Step 3: Cross multiply
    2,881.15x = 3,974.60 × 2,769.37
  4. Step 4: Simplify right side
    2,881.15x = 11,007,104.28
  5. Step 5: Solve for x
    x = 11,007,104.28/2,881.15
  6. Step 6: Final answer
    x = 3,820.39

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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.