Home / 3,939.57-5,437.38-2,262.11

Finding the Fourth Proportional to 3,939.57, 5,437.38 and 2,262.11

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Solution

The fourth proportional to 3,939.57, 5,437.38 and 2,262.11 is: 3,122.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.57 : 5,437.38 = 2,262.11 : x
  2. Step 2: Convert to fraction form
    3,939.57/5,437.38 = 2,262.11/x
  3. Step 3: Cross multiply
    3,939.57x = 5,437.38 × 2,262.11
  4. Step 4: Simplify right side
    3,939.57x = 12,299,924.48
  5. Step 5: Solve for x
    x = 12,299,924.48/3,939.57
  6. Step 6: Final answer
    x = 3,122.15

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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.