Home / 2,238.18-3,088.86-1,243.68

Finding the Fourth Proportional to 2,238.18, 3,088.86 and 1,243.68

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Solution

The fourth proportional to 2,238.18, 3,088.86 and 1,243.68 is: 1,716.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.18 : 3,088.86 = 1,243.68 : x
  2. Step 2: Convert to fraction form
    2,238.18/3,088.86 = 1,243.68/x
  3. Step 3: Cross multiply
    2,238.18x = 3,088.86 × 1,243.68
  4. Step 4: Simplify right side
    2,238.18x = 3,841,553.40
  5. Step 5: Solve for x
    x = 3,841,553.40/2,238.18
  6. Step 6: Final answer
    x = 1,716.37

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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.