Home / 3,678.37-5,515.41-1,212.52

Finding the Fourth Proportional to 3,678.37, 5,515.41 and 1,212.52

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Solution

The fourth proportional to 3,678.37, 5,515.41 and 1,212.52 is: 1,818.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.37 : 5,515.41 = 1,212.52 : x
  2. Step 2: Convert to fraction form
    3,678.37/5,515.41 = 1,212.52/x
  3. Step 3: Cross multiply
    3,678.37x = 5,515.41 × 1,212.52
  4. Step 4: Simplify right side
    3,678.37x = 6,687,544.93
  5. Step 5: Solve for x
    x = 6,687,544.93/3,678.37
  6. Step 6: Final answer
    x = 1,818.07

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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.