Home / 7,833.51-11,751.89-2,639.25

Finding the Fourth Proportional to 7,833.51, 11,751.89 and 2,639.25

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Solution

The fourth proportional to 7,833.51, 11,751.89 and 2,639.25 is: 3,959.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,833.51 : 11,751.89 = 2,639.25 : x
  2. Step 2: Convert to fraction form
    7,833.51/11,751.89 = 2,639.25/x
  3. Step 3: Cross multiply
    7,833.51x = 11,751.89 × 2,639.25
  4. Step 4: Simplify right side
    7,833.51x = 31,016,162.49
  5. Step 5: Solve for x
    x = 31,016,162.49/7,833.51
  6. Step 6: Final answer
    x = 3,959.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.