Home / 3,112.16-4,293.42-2,227.64

Finding the Fourth Proportional to 3,112.16, 4,293.42 and 2,227.64

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Solution

The fourth proportional to 3,112.16, 4,293.42 and 2,227.64 is: 3,073.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.16 : 4,293.42 = 2,227.64 : x
  2. Step 2: Convert to fraction form
    3,112.16/4,293.42 = 2,227.64/x
  3. Step 3: Cross multiply
    3,112.16x = 4,293.42 × 2,227.64
  4. Step 4: Simplify right side
    3,112.16x = 9,564,194.13
  5. Step 5: Solve for x
    x = 9,564,194.13/3,112.16
  6. Step 6: Final answer
    x = 3,073.17

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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.