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Finding the Fourth Proportional to 1,728.69, 2,593.26 and 632.85

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Solution

The fourth proportional to 1,728.69, 2,593.26 and 632.85 is: 949.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728.69 : 2,593.26 = 632.85 : x
  2. Step 2: Convert to fraction form
    1,728.69/2,593.26 = 632.85/x
  3. Step 3: Cross multiply
    1,728.69x = 2,593.26 × 632.85
  4. Step 4: Simplify right side
    1,728.69x = 1,641,144.59
  5. Step 5: Solve for x
    x = 1,641,144.59/1,728.69
  6. Step 6: Final answer
    x = 949.36

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1.5x scale

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.