Home / 2,631-3,632.30-2,011.16

Finding the Fourth Proportional to 2,631, 3,632.30 and 2,011.16

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Solution

The fourth proportional to 2,631, 3,632.30 and 2,011.16 is: 2,776.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631 : 3,632.30 = 2,011.16 : x
  2. Step 2: Convert to fraction form
    2,631/3,632.30 = 2,011.16/x
  3. Step 3: Cross multiply
    2,631x = 3,632.30 × 2,011.16
  4. Step 4: Simplify right side
    2,631x = 7,305,136.47
  5. Step 5: Solve for x
    x = 7,305,136.47/2,631
  6. Step 6: Final answer
    x = 2,776.56

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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.