Home / 3,814.40-5,718.36-2,081.36

Finding the Fourth Proportional to 3,814.40, 5,718.36 and 2,081.36

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Solution

The fourth proportional to 3,814.40, 5,718.36 and 2,081.36 is: 3,120.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,814.40 : 5,718.36 = 2,081.36 : x
  2. Step 2: Convert to fraction form
    3,814.40/5,718.36 = 2,081.36/x
  3. Step 3: Cross multiply
    3,814.40x = 5,718.36 × 2,081.36
  4. Step 4: Simplify right side
    3,814.40x = 11,901,965.77
  5. Step 5: Solve for x
    x = 11,901,965.77/3,814.40
  6. Step 6: Final answer
    x = 3,120.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.