Home / 3,176.80-4,766.10-1,328.79

Finding the Fourth Proportional to 3,176.80, 4,766.10 and 1,328.79

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Solution

The fourth proportional to 3,176.80, 4,766.10 and 1,328.79 is: 1,993.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.80 : 4,766.10 = 1,328.79 : x
  2. Step 2: Convert to fraction form
    3,176.80/4,766.10 = 1,328.79/x
  3. Step 3: Cross multiply
    3,176.80x = 4,766.10 × 1,328.79
  4. Step 4: Simplify right side
    3,176.80x = 6,333,146.02
  5. Step 5: Solve for x
    x = 6,333,146.02/3,176.80
  6. Step 6: Final answer
    x = 1,993.56

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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.