Home / 1,736.73-2,605.26-640.84

Finding the Fourth Proportional to 1,736.73, 2,605.26 and 640.84

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Solution

The fourth proportional to 1,736.73, 2,605.26 and 640.84 is: 961.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,736.73 : 2,605.26 = 640.84 : x
  2. Step 2: Convert to fraction form
    1,736.73/2,605.26 = 640.84/x
  3. Step 3: Cross multiply
    1,736.73x = 2,605.26 × 640.84
  4. Step 4: Simplify right side
    1,736.73x = 1,669,548.27
  5. Step 5: Solve for x
    x = 1,669,548.27/1,736.73
  6. Step 6: Final answer
    x = 961.32

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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.