Home / 4,940.80-7,399.05-3,288.40

Finding the Fourth Proportional to 4,940.80, 7,399.05 and 3,288.40

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Solution

The fourth proportional to 4,940.80, 7,399.05 and 3,288.40 is: 4,924.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.80 : 7,399.05 = 3,288.40 : x
  2. Step 2: Convert to fraction form
    4,940.80/7,399.05 = 3,288.40/x
  3. Step 3: Cross multiply
    4,940.80x = 7,399.05 × 3,288.40
  4. Step 4: Simplify right side
    4,940.80x = 24,331,036.02
  5. Step 5: Solve for x
    x = 24,331,036.02/4,940.80
  6. Step 6: Final answer
    x = 4,924.51

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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.