Home / 5,619.68-7,755.15-3,101.79

Finding the Fourth Proportional to 5,619.68, 7,755.15 and 3,101.79

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Solution

The fourth proportional to 5,619.68, 7,755.15 and 3,101.79 is: 4,280.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.68 : 7,755.15 = 3,101.79 : x
  2. Step 2: Convert to fraction form
    5,619.68/7,755.15 = 3,101.79/x
  3. Step 3: Cross multiply
    5,619.68x = 7,755.15 × 3,101.79
  4. Step 4: Simplify right side
    5,619.68x = 24,054,846.72
  5. Step 5: Solve for x
    x = 24,054,846.72/5,619.68
  6. Step 6: Final answer
    x = 4,280.47

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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.