Home / 5,419.88-8,123.34-3,336.56

Finding the Fourth Proportional to 5,419.88, 8,123.34 and 3,336.56

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Solution

The fourth proportional to 5,419.88, 8,123.34 and 3,336.56 is: 5,000.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.88 : 8,123.34 = 3,336.56 : x
  2. Step 2: Convert to fraction form
    5,419.88/8,123.34 = 3,336.56/x
  3. Step 3: Cross multiply
    5,419.88x = 8,123.34 × 3,336.56
  4. Step 4: Simplify right side
    5,419.88x = 27,104,011.31
  5. Step 5: Solve for x
    x = 27,104,011.31/5,419.88
  6. Step 6: Final answer
    x = 5,000.85

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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.