Home / 3,173.80-4,379.84-1,776.56

Finding the Fourth Proportional to 3,173.80, 4,379.84 and 1,776.56

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Solution

The fourth proportional to 3,173.80, 4,379.84 and 1,776.56 is: 2,451.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.80 : 4,379.84 = 1,776.56 : x
  2. Step 2: Convert to fraction form
    3,173.80/4,379.84 = 1,776.56/x
  3. Step 3: Cross multiply
    3,173.80x = 4,379.84 × 1,776.56
  4. Step 4: Simplify right side
    3,173.80x = 7,781,048.55
  5. Step 5: Solve for x
    x = 7,781,048.55/3,173.80
  6. Step 6: Final answer
    x = 2,451.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.