Home / 3,891.07-5,369.82-2,212.63

Finding the Fourth Proportional to 3,891.07, 5,369.82 and 2,212.63

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Solution

The fourth proportional to 3,891.07, 5,369.82 and 2,212.63 is: 3,053.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.07 : 5,369.82 = 2,212.63 : x
  2. Step 2: Convert to fraction form
    3,891.07/5,369.82 = 2,212.63/x
  3. Step 3: Cross multiply
    3,891.07x = 5,369.82 × 2,212.63
  4. Step 4: Simplify right side
    3,891.07x = 11,881,421.77
  5. Step 5: Solve for x
    x = 11,881,421.77/3,891.07
  6. Step 6: Final answer
    x = 3,053.51

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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.