Home / 1,662.03-2,493.26-621.78

Finding the Fourth Proportional to 1,662.03, 2,493.26 and 621.78

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Solution

The fourth proportional to 1,662.03, 2,493.26 and 621.78 is: 932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,662.03 : 2,493.26 = 621.78 : x
  2. Step 2: Convert to fraction form
    1,662.03/2,493.26 = 621.78/x
  3. Step 3: Cross multiply
    1,662.03x = 2,493.26 × 621.78
  4. Step 4: Simplify right side
    1,662.03x = 1,550,273.61
  5. Step 5: Solve for x
    x = 1,550,273.61/1,662.03
  6. Step 6: Final answer
    x = 932.76

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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.