Home / 3,245.12-4,890.08-2,680.64

Finding the Fourth Proportional to 3,245.12, 4,890.08 and 2,680.64

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Solution

The fourth proportional to 3,245.12, 4,890.08 and 2,680.64 is: 4,039.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.12 : 4,890.08 = 2,680.64 : x
  2. Step 2: Convert to fraction form
    3,245.12/4,890.08 = 2,680.64/x
  3. Step 3: Cross multiply
    3,245.12x = 4,890.08 × 2,680.64
  4. Step 4: Simplify right side
    3,245.12x = 13,108,544.05
  5. Step 5: Solve for x
    x = 13,108,544.05/3,245.12
  6. Step 6: Final answer
    x = 4,039.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.