Home / 2,272.07-3,408.11-628.70

Finding the Fourth Proportional to 2,272.07, 3,408.11 and 628.70

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Solution

The fourth proportional to 2,272.07, 3,408.11 and 628.70 is: 943.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.07 : 3,408.11 = 628.70 : x
  2. Step 2: Convert to fraction form
    2,272.07/3,408.11 = 628.70/x
  3. Step 3: Cross multiply
    2,272.07x = 3,408.11 × 628.70
  4. Step 4: Simplify right side
    2,272.07x = 2,142,675.61
  5. Step 5: Solve for x
    x = 2,142,675.61/2,272.07
  6. Step 6: Final answer
    x = 943.05

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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.