Home / 3,718.35-5,131.26-2,039.82

Finding the Fourth Proportional to 3,718.35, 5,131.26 and 2,039.82

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Solution

The fourth proportional to 3,718.35, 5,131.26 and 2,039.82 is: 2,814.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.35 : 5,131.26 = 2,039.82 : x
  2. Step 2: Convert to fraction form
    3,718.35/5,131.26 = 2,039.82/x
  3. Step 3: Cross multiply
    3,718.35x = 5,131.26 × 2,039.82
  4. Step 4: Simplify right side
    3,718.35x = 10,466,846.77
  5. Step 5: Solve for x
    x = 10,466,846.77/3,718.35
  6. Step 6: Final answer
    x = 2,814.92

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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.