Home / 2,879.44-3,975.54-2,215.12

Finding the Fourth Proportional to 2,879.44, 3,975.54 and 2,215.12

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Solution

The fourth proportional to 2,879.44, 3,975.54 and 2,215.12 is: 3,058.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.44 : 3,975.54 = 2,215.12 : x
  2. Step 2: Convert to fraction form
    2,879.44/3,975.54 = 2,215.12/x
  3. Step 3: Cross multiply
    2,879.44x = 3,975.54 × 2,215.12
  4. Step 4: Simplify right side
    2,879.44x = 8,806,298.16
  5. Step 5: Solve for x
    x = 8,806,298.16/2,879.44
  6. Step 6: Final answer
    x = 3,058.34

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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.