Home / 6,338.32-9,505.08-2,120.72

Finding the Fourth Proportional to 6,338.32, 9,505.08 and 2,120.72

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Solution

The fourth proportional to 6,338.32, 9,505.08 and 2,120.72 is: 3,180.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,338.32 : 9,505.08 = 2,120.72 : x
  2. Step 2: Convert to fraction form
    6,338.32/9,505.08 = 2,120.72/x
  3. Step 3: Cross multiply
    6,338.32x = 9,505.08 × 2,120.72
  4. Step 4: Simplify right side
    6,338.32x = 20,157,565.73
  5. Step 5: Solve for x
    x = 20,157,565.73/6,338.32
  6. Step 6: Final answer
    x = 3,180.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.