Home / 2,881.36-3,976.44-2,181.52

Finding the Fourth Proportional to 2,881.36, 3,976.44 and 2,181.52

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Solution

The fourth proportional to 2,881.36, 3,976.44 and 2,181.52 is: 3,010.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.36 : 3,976.44 = 2,181.52 : x
  2. Step 2: Convert to fraction form
    2,881.36/3,976.44 = 2,181.52/x
  3. Step 3: Cross multiply
    2,881.36x = 3,976.44 × 2,181.52
  4. Step 4: Simplify right side
    2,881.36x = 8,674,683.39
  5. Step 5: Solve for x
    x = 8,674,683.39/2,881.36
  6. Step 6: Final answer
    x = 3,010.62

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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.