Home / 2,689,392.33-3,709,919.75-1,721,481.21

Finding the Fourth Proportional to 2,689,392.33, 3,709,919.75 and 1,721,481.21

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Solution

The fourth proportional to 2,689,392.33, 3,709,919.75 and 1,721,481.21 is: 2,374,721.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689,392.33 : 3,709,919.75 = 1,721,481.21 : x
  2. Step 2: Convert to fraction form
    2,689,392.33/3,709,919.75 = 1,721,481.21/x
  3. Step 3: Cross multiply
    2,689,392.33x = 3,709,919.75 × 1,721,481.21
  4. Step 4: Simplify right side
    2,689,392.33x = 6,386,557,131,625.49
  5. Step 5: Solve for x
    x = 6,386,557,131,625.49/2,689,392.33
  6. Step 6: Final answer
    x = 2,374,721.26

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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.