Home / 1,738.90-2,608.33-422.66

Finding the Fourth Proportional to 1,738.90, 2,608.33 and 422.66

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Solution

The fourth proportional to 1,738.90, 2,608.33 and 422.66 is: 633.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738.90 : 2,608.33 = 422.66 : x
  2. Step 2: Convert to fraction form
    1,738.90/2,608.33 = 422.66/x
  3. Step 3: Cross multiply
    1,738.90x = 2,608.33 × 422.66
  4. Step 4: Simplify right side
    1,738.90x = 1,102,436.76
  5. Step 5: Solve for x
    x = 1,102,436.76/1,738.90
  6. Step 6: Final answer
    x = 633.99

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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.