Home / 3,976.80-5,966.46-1,203.76

Finding the Fourth Proportional to 3,976.80, 5,966.46 and 1,203.76

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Solution

The fourth proportional to 3,976.80, 5,966.46 and 1,203.76 is: 1,806.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.80 : 5,966.46 = 1,203.76 : x
  2. Step 2: Convert to fraction form
    3,976.80/5,966.46 = 1,203.76/x
  3. Step 3: Cross multiply
    3,976.80x = 5,966.46 × 1,203.76
  4. Step 4: Simplify right side
    3,976.80x = 7,182,193.35
  5. Step 5: Solve for x
    x = 7,182,193.35/3,976.80
  6. Step 6: Final answer
    x = 1,806.02

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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.