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Finding the Fourth Proportional to 1,729.22, 2,594.91 and 908.07

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Solution

The fourth proportional to 1,729.22, 2,594.91 and 908.07 is: 1,362.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.22 : 2,594.91 = 908.07 : x
  2. Step 2: Convert to fraction form
    1,729.22/2,594.91 = 908.07/x
  3. Step 3: Cross multiply
    1,729.22x = 2,594.91 × 908.07
  4. Step 4: Simplify right side
    1,729.22x = 2,356,359.92
  5. Step 5: Solve for x
    x = 2,356,359.92/1,729.22
  6. Step 6: Final answer
    x = 1,362.68

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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.