Home / 3,822.68-5,733.12-1,357.40

Finding the Fourth Proportional to 3,822.68, 5,733.12 and 1,357.40

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Solution

The fourth proportional to 3,822.68, 5,733.12 and 1,357.40 is: 2,035.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.68 : 5,733.12 = 1,357.40 : x
  2. Step 2: Convert to fraction form
    3,822.68/5,733.12 = 1,357.40/x
  3. Step 3: Cross multiply
    3,822.68x = 5,733.12 × 1,357.40
  4. Step 4: Simplify right side
    3,822.68x = 7,782,137.09
  5. Step 5: Solve for x
    x = 7,782,137.09/3,822.68
  6. Step 6: Final answer
    x = 2,035.78

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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.