Home / 6,120.78-8,446.68-3,326.28

Finding the Fourth Proportional to 6,120.78, 8,446.68 and 3,326.28

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Solution

The fourth proportional to 6,120.78, 8,446.68 and 3,326.28 is: 4,590.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.78 : 8,446.68 = 3,326.28 : x
  2. Step 2: Convert to fraction form
    6,120.78/8,446.68 = 3,326.28/x
  3. Step 3: Cross multiply
    6,120.78x = 8,446.68 × 3,326.28
  4. Step 4: Simplify right side
    6,120.78x = 28,096,022.75
  5. Step 5: Solve for x
    x = 28,096,022.75/6,120.78
  6. Step 6: Final answer
    x = 4,590.27

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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.