Home / 1,629.41-2,444.45-628.78

Finding the Fourth Proportional to 1,629.41, 2,444.45 and 628.78

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Solution

The fourth proportional to 1,629.41, 2,444.45 and 628.78 is: 943.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.41 : 2,444.45 = 628.78 : x
  2. Step 2: Convert to fraction form
    1,629.41/2,444.45 = 628.78/x
  3. Step 3: Cross multiply
    1,629.41x = 2,444.45 × 628.78
  4. Step 4: Simplify right side
    1,629.41x = 1,537,016.73
  5. Step 5: Solve for x
    x = 1,537,016.73/1,629.41
  6. Step 6: Final answer
    x = 943.30

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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.