Home / 2,212.30-3,334.45-2,113.48

Finding the Fourth Proportional to 2,212.30, 3,334.45 and 2,113.48

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Solution

The fourth proportional to 2,212.30, 3,334.45 and 2,113.48 is: 3,185.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.30 : 3,334.45 = 2,113.48 : x
  2. Step 2: Convert to fraction form
    2,212.30/3,334.45 = 2,113.48/x
  3. Step 3: Cross multiply
    2,212.30x = 3,334.45 × 2,113.48
  4. Step 4: Simplify right side
    2,212.30x = 7,047,293.39
  5. Step 5: Solve for x
    x = 7,047,293.39/2,212.30
  6. Step 6: Final answer
    x = 3,185.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.