Home / 3,681.72-5,080.79-2,003.19

Finding the Fourth Proportional to 3,681.72, 5,080.79 and 2,003.19

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Solution

The fourth proportional to 3,681.72, 5,080.79 and 2,003.19 is: 2,764.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.72 : 5,080.79 = 2,003.19 : x
  2. Step 2: Convert to fraction form
    3,681.72/5,080.79 = 2,003.19/x
  3. Step 3: Cross multiply
    3,681.72x = 5,080.79 × 2,003.19
  4. Step 4: Simplify right side
    3,681.72x = 10,177,800.95
  5. Step 5: Solve for x
    x = 10,177,800.95/3,681.72
  6. Step 6: Final answer
    x = 2,764.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.