Home / 3,721.84-5,136.30-2,230

Finding the Fourth Proportional to 3,721.84, 5,136.30 and 2,230

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Solution

The fourth proportional to 3,721.84, 5,136.30 and 2,230 is: 3,077.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.84 : 5,136.30 = 2,230 : x
  2. Step 2: Convert to fraction form
    3,721.84/5,136.30 = 2,230/x
  3. Step 3: Cross multiply
    3,721.84x = 5,136.30 × 2,230
  4. Step 4: Simplify right side
    3,721.84x = 11,453,949
  5. Step 5: Solve for x
    x = 11,453,949/3,721.84
  6. Step 6: Final answer
    x = 3,077.50

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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.