Home / 2,215.41-3,326.86-2,127.12

Finding the Fourth Proportional to 2,215.41, 3,326.86 and 2,127.12

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Solution

The fourth proportional to 2,215.41, 3,326.86 and 2,127.12 is: 3,194.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.41 : 3,326.86 = 2,127.12 : x
  2. Step 2: Convert to fraction form
    2,215.41/3,326.86 = 2,127.12/x
  3. Step 3: Cross multiply
    2,215.41x = 3,326.86 × 2,127.12
  4. Step 4: Simplify right side
    2,215.41x = 7,076,630.44
  5. Step 5: Solve for x
    x = 7,076,630.44/2,215.41
  6. Step 6: Final answer
    x = 3,194.28

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1.5x scale

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.