Home / 3,513.80-5,270.09-1,205.30

Finding the Fourth Proportional to 3,513.80, 5,270.09 and 1,205.30

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Solution

The fourth proportional to 3,513.80, 5,270.09 and 1,205.30 is: 1,807.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.80 : 5,270.09 = 1,205.30 : x
  2. Step 2: Convert to fraction form
    3,513.80/5,270.09 = 1,205.30/x
  3. Step 3: Cross multiply
    3,513.80x = 5,270.09 × 1,205.30
  4. Step 4: Simplify right side
    3,513.80x = 6,352,007.10
  5. Step 5: Solve for x
    x = 6,352,007.10/3,513.80
  6. Step 6: Final answer
    x = 1,807.73

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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.