Home / 2,080.87-2,872.08-1,372.84

Finding the Fourth Proportional to 2,080.87, 2,872.08 and 1,372.84

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Solution

The fourth proportional to 2,080.87, 2,872.08 and 1,372.84 is: 1,894.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.87 : 2,872.08 = 1,372.84 : x
  2. Step 2: Convert to fraction form
    2,080.87/2,872.08 = 1,372.84/x
  3. Step 3: Cross multiply
    2,080.87x = 2,872.08 × 1,372.84
  4. Step 4: Simplify right side
    2,080.87x = 3,942,906.31
  5. Step 5: Solve for x
    x = 3,942,906.31/2,080.87
  6. Step 6: Final answer
    x = 1,894.84

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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.