Home / 2,811.70-4,212.28-2,352.43

Finding the Fourth Proportional to 2,811.70, 4,212.28 and 2,352.43

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Solution

The fourth proportional to 2,811.70, 4,212.28 and 2,352.43 is: 3,524.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.70 : 4,212.28 = 2,352.43 : x
  2. Step 2: Convert to fraction form
    2,811.70/4,212.28 = 2,352.43/x
  3. Step 3: Cross multiply
    2,811.70x = 4,212.28 × 2,352.43
  4. Step 4: Simplify right side
    2,811.70x = 9,909,093.84
  5. Step 5: Solve for x
    x = 9,909,093.84/2,811.70
  6. Step 6: Final answer
    x = 3,524.24

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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.