Home / 6,120.72-8,446.80-3,326.28

Finding the Fourth Proportional to 6,120.72, 8,446.80 and 3,326.28

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Solution

The fourth proportional to 6,120.72, 8,446.80 and 3,326.28 is: 4,590.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.72 : 8,446.80 = 3,326.28 : x
  2. Step 2: Convert to fraction form
    6,120.72/8,446.80 = 3,326.28/x
  3. Step 3: Cross multiply
    6,120.72x = 8,446.80 × 3,326.28
  4. Step 4: Simplify right side
    6,120.72x = 28,096,421.90
  5. Step 5: Solve for x
    x = 28,096,421.90/6,120.72
  6. Step 6: Final answer
    x = 4,590.38

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Half scale
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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.