Home / 2,238.13-3,334.70-2,112.38

Finding the Fourth Proportional to 2,238.13, 3,334.70 and 2,112.38

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Solution

The fourth proportional to 2,238.13, 3,334.70 and 2,112.38 is: 3,147.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.13 : 3,334.70 = 2,112.38 : x
  2. Step 2: Convert to fraction form
    2,238.13/3,334.70 = 2,112.38/x
  3. Step 3: Cross multiply
    2,238.13x = 3,334.70 × 2,112.38
  4. Step 4: Simplify right side
    2,238.13x = 7,044,142.19
  5. Step 5: Solve for x
    x = 7,044,142.19/2,238.13
  6. Step 6: Final answer
    x = 3,147.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.