Home / 2,694.89-3,719.99-1,813.21

Finding the Fourth Proportional to 2,694.89, 3,719.99 and 1,813.21

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Solution

The fourth proportional to 2,694.89, 3,719.99 and 1,813.21 is: 2,502.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,694.89 : 3,719.99 = 1,813.21 : x
  2. Step 2: Convert to fraction form
    2,694.89/3,719.99 = 1,813.21/x
  3. Step 3: Cross multiply
    2,694.89x = 3,719.99 × 1,813.21
  4. Step 4: Simplify right side
    2,694.89x = 6,745,118.30
  5. Step 5: Solve for x
    x = 6,745,118.30/2,694.89
  6. Step 6: Final answer
    x = 2,502.93

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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.