Home / 2,239.77-3,091.07-1,245.02

Finding the Fourth Proportional to 2,239.77, 3,091.07 and 1,245.02

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Solution

The fourth proportional to 2,239.77, 3,091.07 and 1,245.02 is: 1,718.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.77 : 3,091.07 = 1,245.02 : x
  2. Step 2: Convert to fraction form
    2,239.77/3,091.07 = 1,245.02/x
  3. Step 3: Cross multiply
    2,239.77x = 3,091.07 × 1,245.02
  4. Step 4: Simplify right side
    2,239.77x = 3,848,422.29
  5. Step 5: Solve for x
    x = 3,848,422.29/2,239.77
  6. Step 6: Final answer
    x = 1,718.23

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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.