Home / 3,982.40-5,973.66-1,208.70

Finding the Fourth Proportional to 3,982.40, 5,973.66 and 1,208.70

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Solution

The fourth proportional to 3,982.40, 5,973.66 and 1,208.70 is: 1,813.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.40 : 5,973.66 = 1,208.70 : x
  2. Step 2: Convert to fraction form
    3,982.40/5,973.66 = 1,208.70/x
  3. Step 3: Cross multiply
    3,982.40x = 5,973.66 × 1,208.70
  4. Step 4: Simplify right side
    3,982.40x = 7,220,362.84
  5. Step 5: Solve for x
    x = 7,220,362.84/3,982.40
  6. Step 6: Final answer
    x = 1,813.07

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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.