Home / 4,081.80-5,631.26-2,665.02

Finding the Fourth Proportional to 4,081.80, 5,631.26 and 2,665.02

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Solution

The fourth proportional to 4,081.80, 5,631.26 and 2,665.02 is: 3,676.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.80 : 5,631.26 = 2,665.02 : x
  2. Step 2: Convert to fraction form
    4,081.80/5,631.26 = 2,665.02/x
  3. Step 3: Cross multiply
    4,081.80x = 5,631.26 × 2,665.02
  4. Step 4: Simplify right side
    4,081.80x = 15,007,407.20
  5. Step 5: Solve for x
    x = 15,007,407.20/4,081.80
  6. Step 6: Final answer
    x = 3,676.66

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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.