Home / 3,844.80-5,765.78-1,381.66

Finding the Fourth Proportional to 3,844.80, 5,765.78 and 1,381.66

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Solution

The fourth proportional to 3,844.80, 5,765.78 and 1,381.66 is: 2,071.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,844.80 : 5,765.78 = 1,381.66 : x
  2. Step 2: Convert to fraction form
    3,844.80/5,765.78 = 1,381.66/x
  3. Step 3: Cross multiply
    3,844.80x = 5,765.78 × 1,381.66
  4. Step 4: Simplify right side
    3,844.80x = 7,966,336.63
  5. Step 5: Solve for x
    x = 7,966,336.63/3,844.80
  6. Step 6: Final answer
    x = 2,071.98

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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.