Home / 2,712.96-3,745.17-2,220.89

Finding the Fourth Proportional to 2,712.96, 3,745.17 and 2,220.89

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Solution

The fourth proportional to 2,712.96, 3,745.17 and 2,220.89 is: 3,065.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.96 : 3,745.17 = 2,220.89 : x
  2. Step 2: Convert to fraction form
    2,712.96/3,745.17 = 2,220.89/x
  3. Step 3: Cross multiply
    2,712.96x = 3,745.17 × 2,220.89
  4. Step 4: Simplify right side
    2,712.96x = 8,317,591.88
  5. Step 5: Solve for x
    x = 8,317,591.88/2,712.96
  6. Step 6: Final answer
    x = 3,065.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.