Home / 1,736.41-2,604.79-640.52

Finding the Fourth Proportional to 1,736.41, 2,604.79 and 640.52

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Solution

The fourth proportional to 1,736.41, 2,604.79 and 640.52 is: 960.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,736.41 : 2,604.79 = 640.52 : x
  2. Step 2: Convert to fraction form
    1,736.41/2,604.79 = 640.52/x
  3. Step 3: Cross multiply
    1,736.41x = 2,604.79 × 640.52
  4. Step 4: Simplify right side
    1,736.41x = 1,668,420.09
  5. Step 5: Solve for x
    x = 1,668,420.09/1,736.41
  6. Step 6: Final answer
    x = 960.84

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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.