Home / 3,983.49-5,973.30-1,209.66

Finding the Fourth Proportional to 3,983.49, 5,973.30 and 1,209.66

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Solution

The fourth proportional to 3,983.49, 5,973.30 and 1,209.66 is: 1,813.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.49 : 5,973.30 = 1,209.66 : x
  2. Step 2: Convert to fraction form
    3,983.49/5,973.30 = 1,209.66/x
  3. Step 3: Cross multiply
    3,983.49x = 5,973.30 × 1,209.66
  4. Step 4: Simplify right side
    3,983.49x = 7,225,662.08
  5. Step 5: Solve for x
    x = 7,225,662.08/3,983.49
  6. Step 6: Final answer
    x = 1,813.90

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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.