Home / 2,426.25-3,639.38-694.88

Finding the Fourth Proportional to 2,426.25, 3,639.38 and 694.88

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Solution

The fourth proportional to 2,426.25, 3,639.38 and 694.88 is: 1,042.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,426.25 : 3,639.38 = 694.88 : x
  2. Step 2: Convert to fraction form
    2,426.25/3,639.38 = 694.88/x
  3. Step 3: Cross multiply
    2,426.25x = 3,639.38 × 694.88
  4. Step 4: Simplify right side
    2,426.25x = 2,528,910.70
  5. Step 5: Solve for x
    x = 2,528,910.70/2,426.25
  6. Step 6: Final answer
    x = 1,042.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.