Home / 3,177.81-4,766.13-1,328.43

Finding the Fourth Proportional to 3,177.81, 4,766.13 and 1,328.43

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Solution

The fourth proportional to 3,177.81, 4,766.13 and 1,328.43 is: 1,992.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.81 : 4,766.13 = 1,328.43 : x
  2. Step 2: Convert to fraction form
    3,177.81/4,766.13 = 1,328.43/x
  3. Step 3: Cross multiply
    3,177.81x = 4,766.13 × 1,328.43
  4. Step 4: Simplify right side
    3,177.81x = 6,331,487.95
  5. Step 5: Solve for x
    x = 6,331,487.95/3,177.81
  6. Step 6: Final answer
    x = 1,992.41

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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.