Home / 4,120.45-6,186-3,539.21

Finding the Fourth Proportional to 4,120.45, 6,186 and 3,539.21

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Solution

The fourth proportional to 4,120.45, 6,186 and 3,539.21 is: 5,313.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.45 : 6,186 = 3,539.21 : x
  2. Step 2: Convert to fraction form
    4,120.45/6,186 = 3,539.21/x
  3. Step 3: Cross multiply
    4,120.45x = 6,186 × 3,539.21
  4. Step 4: Simplify right side
    4,120.45x = 21,893,522.13
  5. Step 5: Solve for x
    x = 21,893,522.13/4,120.45
  6. Step 6: Final answer
    x = 5,313.39

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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.