Home / 4,415.31-6,618.65-2,108.43

Finding the Fourth Proportional to 4,415.31, 6,618.65 and 2,108.43

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Solution

The fourth proportional to 4,415.31, 6,618.65 and 2,108.43 is: 3,160.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,415.31 : 6,618.65 = 2,108.43 : x
  2. Step 2: Convert to fraction form
    4,415.31/6,618.65 = 2,108.43/x
  3. Step 3: Cross multiply
    4,415.31x = 6,618.65 × 2,108.43
  4. Step 4: Simplify right side
    4,415.31x = 13,954,949.68
  5. Step 5: Solve for x
    x = 13,954,949.68/4,415.31
  6. Step 6: Final answer
    x = 3,160.58

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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.