Home / 3,176.31-4,759.86-2,188.11

Finding the Fourth Proportional to 3,176.31, 4,759.86 and 2,188.11

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Solution

The fourth proportional to 3,176.31, 4,759.86 and 2,188.11 is: 3,278.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.31 : 4,759.86 = 2,188.11 : x
  2. Step 2: Convert to fraction form
    3,176.31/4,759.86 = 2,188.11/x
  3. Step 3: Cross multiply
    3,176.31x = 4,759.86 × 2,188.11
  4. Step 4: Simplify right side
    3,176.31x = 10,415,097.26
  5. Step 5: Solve for x
    x = 10,415,097.26/3,176.31
  6. Step 6: Final answer
    x = 3,278.99

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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.