Home / 5,421.08-8,123.81-3,194.66

Finding the Fourth Proportional to 5,421.08, 8,123.81 and 3,194.66

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Solution

The fourth proportional to 5,421.08, 8,123.81 and 3,194.66 is: 4,787.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.08 : 8,123.81 = 3,194.66 : x
  2. Step 2: Convert to fraction form
    5,421.08/8,123.81 = 3,194.66/x
  3. Step 3: Cross multiply
    5,421.08x = 8,123.81 × 3,194.66
  4. Step 4: Simplify right side
    5,421.08x = 25,952,770.24
  5. Step 5: Solve for x
    x = 25,952,770.24/5,421.08
  6. Step 6: Final answer
    x = 4,787.38

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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.