Home / 3,718.54-5,131.41-2,039.91

Finding the Fourth Proportional to 3,718.54, 5,131.41 and 2,039.91

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Solution

The fourth proportional to 3,718.54, 5,131.41 and 2,039.91 is: 2,814.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.54 : 5,131.41 = 2,039.91 : x
  2. Step 2: Convert to fraction form
    3,718.54/5,131.41 = 2,039.91/x
  3. Step 3: Cross multiply
    3,718.54x = 5,131.41 × 2,039.91
  4. Step 4: Simplify right side
    3,718.54x = 10,467,592.36
  5. Step 5: Solve for x
    x = 10,467,592.36/3,718.54
  6. Step 6: Final answer
    x = 2,814.98

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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.