Home / 1,616.78-2,425.30-629.58

Finding the Fourth Proportional to 1,616.78, 2,425.30 and 629.58

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Solution

The fourth proportional to 1,616.78, 2,425.30 and 629.58 is: 944.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616.78 : 2,425.30 = 629.58 : x
  2. Step 2: Convert to fraction form
    1,616.78/2,425.30 = 629.58/x
  3. Step 3: Cross multiply
    1,616.78x = 2,425.30 × 629.58
  4. Step 4: Simplify right side
    1,616.78x = 1,526,920.37
  5. Step 5: Solve for x
    x = 1,526,920.37/1,616.78
  6. Step 6: Final answer
    x = 944.42

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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.