Home / 3,178.67-4,766.39-1,862.84

Finding the Fourth Proportional to 3,178.67, 4,766.39 and 1,862.84

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Solution

The fourth proportional to 3,178.67, 4,766.39 and 1,862.84 is: 2,793.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.67 : 4,766.39 = 1,862.84 : x
  2. Step 2: Convert to fraction form
    3,178.67/4,766.39 = 1,862.84/x
  3. Step 3: Cross multiply
    3,178.67x = 4,766.39 × 1,862.84
  4. Step 4: Simplify right side
    3,178.67x = 8,878,988.80
  5. Step 5: Solve for x
    x = 8,878,988.80/3,178.67
  6. Step 6: Final answer
    x = 2,793.31

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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.