Home / 2,872.91-3,966.09-1,694.36

Finding the Fourth Proportional to 2,872.91, 3,966.09 and 1,694.36

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Solution

The fourth proportional to 2,872.91, 3,966.09 and 1,694.36 is: 2,339.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.91 : 3,966.09 = 1,694.36 : x
  2. Step 2: Convert to fraction form
    2,872.91/3,966.09 = 1,694.36/x
  3. Step 3: Cross multiply
    2,872.91x = 3,966.09 × 1,694.36
  4. Step 4: Simplify right side
    2,872.91x = 6,719,984.25
  5. Step 5: Solve for x
    x = 6,719,984.25/2,872.91
  6. Step 6: Final answer
    x = 2,339.09

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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.