Home / 3,677.75-5,516.90-1,212.52

Finding the Fourth Proportional to 3,677.75, 5,516.90 and 1,212.52

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Solution

The fourth proportional to 3,677.75, 5,516.90 and 1,212.52 is: 1,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,677.75 : 5,516.90 = 1,212.52 : x
  2. Step 2: Convert to fraction form
    3,677.75/5,516.90 = 1,212.52/x
  3. Step 3: Cross multiply
    3,677.75x = 5,516.90 × 1,212.52
  4. Step 4: Simplify right side
    3,677.75x = 6,689,351.59
  5. Step 5: Solve for x
    x = 6,689,351.59/3,677.75
  6. Step 6: Final answer
    x = 1,818.87

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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.