Home / 2,939.18-4,408.68-1,206.50

Finding the Fourth Proportional to 2,939.18, 4,408.68 and 1,206.50

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Solution

The fourth proportional to 2,939.18, 4,408.68 and 1,206.50 is: 1,809.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.18 : 4,408.68 = 1,206.50 : x
  2. Step 2: Convert to fraction form
    2,939.18/4,408.68 = 1,206.50/x
  3. Step 3: Cross multiply
    2,939.18x = 4,408.68 × 1,206.50
  4. Step 4: Simplify right side
    2,939.18x = 5,319,072.42
  5. Step 5: Solve for x
    x = 5,319,072.42/2,939.18
  6. Step 6: Final answer
    x = 1,809.71

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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.