Home / 2,239.97-3,091.43-1,355.86

Finding the Fourth Proportional to 2,239.97, 3,091.43 and 1,355.86

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Solution

The fourth proportional to 2,239.97, 3,091.43 and 1,355.86 is: 1,871.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.97 : 3,091.43 = 1,355.86 : x
  2. Step 2: Convert to fraction form
    2,239.97/3,091.43 = 1,355.86/x
  3. Step 3: Cross multiply
    2,239.97x = 3,091.43 × 1,355.86
  4. Step 4: Simplify right side
    2,239.97x = 4,191,546.28
  5. Step 5: Solve for x
    x = 4,191,546.28/2,239.97
  6. Step 6: Final answer
    x = 1,871.25

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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.