Home / 3,186.67-4,780.05-1,337.80

Finding the Fourth Proportional to 3,186.67, 4,780.05 and 1,337.80

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Solution

The fourth proportional to 3,186.67, 4,780.05 and 1,337.80 is: 2,006.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.67 : 4,780.05 = 1,337.80 : x
  2. Step 2: Convert to fraction form
    3,186.67/4,780.05 = 1,337.80/x
  3. Step 3: Cross multiply
    3,186.67x = 4,780.05 × 1,337.80
  4. Step 4: Simplify right side
    3,186.67x = 6,394,750.89
  5. Step 5: Solve for x
    x = 6,394,750.89/3,186.67
  6. Step 6: Final answer
    x = 2,006.72

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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.