Home / 5,619.87-7,755.45-3,102

Finding the Fourth Proportional to 5,619.87, 7,755.45 and 3,102

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Solution

The fourth proportional to 5,619.87, 7,755.45 and 3,102 is: 4,280.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.87 : 7,755.45 = 3,102 : x
  2. Step 2: Convert to fraction form
    5,619.87/7,755.45 = 3,102/x
  3. Step 3: Cross multiply
    5,619.87x = 7,755.45 × 3,102
  4. Step 4: Simplify right side
    5,619.87x = 24,057,405.90
  5. Step 5: Solve for x
    x = 24,057,405.90/5,619.87
  6. Step 6: Final answer
    x = 4,280.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.