Home / 3,894.33-5,374.32-2,215.89

Finding the Fourth Proportional to 3,894.33, 5,374.32 and 2,215.89

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Solution

The fourth proportional to 3,894.33, 5,374.32 and 2,215.89 is: 3,058.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.33 : 5,374.32 = 2,215.89 : x
  2. Step 2: Convert to fraction form
    3,894.33/5,374.32 = 2,215.89/x
  3. Step 3: Cross multiply
    3,894.33x = 5,374.32 × 2,215.89
  4. Step 4: Simplify right side
    3,894.33x = 11,908,901.94
  5. Step 5: Solve for x
    x = 11,908,901.94/3,894.33
  6. Step 6: Final answer
    x = 3,058.01

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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.