Home / 6,639.80-9,961.41-2,479.83

Finding the Fourth Proportional to 6,639.80, 9,961.41 and 2,479.83

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Solution

The fourth proportional to 6,639.80, 9,961.41 and 2,479.83 is: 3,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.80 : 9,961.41 = 2,479.83 : x
  2. Step 2: Convert to fraction form
    6,639.80/9,961.41 = 2,479.83/x
  3. Step 3: Cross multiply
    6,639.80x = 9,961.41 × 2,479.83
  4. Step 4: Simplify right side
    6,639.80x = 24,702,631.42
  5. Step 5: Solve for x
    x = 24,702,631.42/6,639.80
  6. Step 6: Final answer
    x = 3,720.39

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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.