Home / 3,174.28-4,379.94-1,776.76

Finding the Fourth Proportional to 3,174.28, 4,379.94 and 1,776.76

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Solution

The fourth proportional to 3,174.28, 4,379.94 and 1,776.76 is: 2,451.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.28 : 4,379.94 = 1,776.76 : x
  2. Step 2: Convert to fraction form
    3,174.28/4,379.94 = 1,776.76/x
  3. Step 3: Cross multiply
    3,174.28x = 4,379.94 × 1,776.76
  4. Step 4: Simplify right side
    3,174.28x = 7,782,102.19
  5. Step 5: Solve for x
    x = 7,782,102.19/3,174.28
  6. Step 6: Final answer
    x = 2,451.61

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1.5x scale

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.