Home / 3,421.41-5,123.22-2,930.96

Finding the Fourth Proportional to 3,421.41, 5,123.22 and 2,930.96

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Solution

The fourth proportional to 3,421.41, 5,123.22 and 2,930.96 is: 4,388.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.41 : 5,123.22 = 2,930.96 : x
  2. Step 2: Convert to fraction form
    3,421.41/5,123.22 = 2,930.96/x
  3. Step 3: Cross multiply
    3,421.41x = 5,123.22 × 2,930.96
  4. Step 4: Simplify right side
    3,421.41x = 15,015,954.71
  5. Step 5: Solve for x
    x = 15,015,954.71/3,421.41
  6. Step 6: Final answer
    x = 4,388.82

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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.