Home / 4,072.08-6,100.12-2,121.68

Finding the Fourth Proportional to 4,072.08, 6,100.12 and 2,121.68

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Solution

The fourth proportional to 4,072.08, 6,100.12 and 2,121.68 is: 3,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.08 : 6,100.12 = 2,121.68 : x
  2. Step 2: Convert to fraction form
    4,072.08/6,100.12 = 2,121.68/x
  3. Step 3: Cross multiply
    4,072.08x = 6,100.12 × 2,121.68
  4. Step 4: Simplify right side
    4,072.08x = 12,942,502.60
  5. Step 5: Solve for x
    x = 12,942,502.60/4,072.08
  6. Step 6: Final answer
    x = 3,178.35

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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.