Home / 1,553.45-2,329.23-628.53

Finding the Fourth Proportional to 1,553.45, 2,329.23 and 628.53

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Solution

The fourth proportional to 1,553.45, 2,329.23 and 628.53 is: 942.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.45 : 2,329.23 = 628.53 : x
  2. Step 2: Convert to fraction form
    1,553.45/2,329.23 = 628.53/x
  3. Step 3: Cross multiply
    1,553.45x = 2,329.23 × 628.53
  4. Step 4: Simplify right side
    1,553.45x = 1,464,002.44
  5. Step 5: Solve for x
    x = 1,464,002.44/1,553.45
  6. Step 6: Final answer
    x = 942.42

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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.