Home / 3,688.62-5,554.41-2,721.48

Finding the Fourth Proportional to 3,688.62, 5,554.41 and 2,721.48

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Solution

The fourth proportional to 3,688.62, 5,554.41 and 2,721.48 is: 4,098.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.62 : 5,554.41 = 2,721.48 : x
  2. Step 2: Convert to fraction form
    3,688.62/5,554.41 = 2,721.48/x
  3. Step 3: Cross multiply
    3,688.62x = 5,554.41 × 2,721.48
  4. Step 4: Simplify right side
    3,688.62x = 15,116,215.73
  5. Step 5: Solve for x
    x = 15,116,215.73/3,688.62
  6. Step 6: Final answer
    x = 4,098.07

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.