Home / 3,940.65-5,437.35-2,262.06

Finding the Fourth Proportional to 3,940.65, 5,437.35 and 2,262.06

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Solution

The fourth proportional to 3,940.65, 5,437.35 and 2,262.06 is: 3,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.65 : 5,437.35 = 2,262.06 : x
  2. Step 2: Convert to fraction form
    3,940.65/5,437.35 = 2,262.06/x
  3. Step 3: Cross multiply
    3,940.65x = 5,437.35 × 2,262.06
  4. Step 4: Simplify right side
    3,940.65x = 12,299,611.94
  5. Step 5: Solve for x
    x = 12,299,611.94/3,940.65
  6. Step 6: Final answer
    x = 3,121.21

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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.