Home / 2,439.80-3,654.30-2,007.80

Finding the Fourth Proportional to 2,439.80, 3,654.30 and 2,007.80

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Solution

The fourth proportional to 2,439.80, 3,654.30 and 2,007.80 is: 3,007.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.80 : 3,654.30 = 2,007.80 : x
  2. Step 2: Convert to fraction form
    2,439.80/3,654.30 = 2,007.80/x
  3. Step 3: Cross multiply
    2,439.80x = 3,654.30 × 2,007.80
  4. Step 4: Simplify right side
    2,439.80x = 7,337,103.54
  5. Step 5: Solve for x
    x = 7,337,103.54/2,439.80
  6. Step 6: Final answer
    x = 3,007.26

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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.