Home / 6,174.12-8,520.30-3,379.80

Finding the Fourth Proportional to 6,174.12, 8,520.30 and 3,379.80

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Solution

The fourth proportional to 6,174.12, 8,520.30 and 3,379.80 is: 4,664.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,174.12 : 8,520.30 = 3,379.80 : x
  2. Step 2: Convert to fraction form
    6,174.12/8,520.30 = 3,379.80/x
  3. Step 3: Cross multiply
    6,174.12x = 8,520.30 × 3,379.80
  4. Step 4: Simplify right side
    6,174.12x = 28,796,909.94
  5. Step 5: Solve for x
    x = 28,796,909.94/6,174.12
  6. Step 6: Final answer
    x = 4,664.13

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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.