Home / 3,171.23-4,375.64-2,176.14

Finding the Fourth Proportional to 3,171.23, 4,375.64 and 2,176.14

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Solution

The fourth proportional to 3,171.23, 4,375.64 and 2,176.14 is: 3,002.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.23 : 4,375.64 = 2,176.14 : x
  2. Step 2: Convert to fraction form
    3,171.23/4,375.64 = 2,176.14/x
  3. Step 3: Cross multiply
    3,171.23x = 4,375.64 × 2,176.14
  4. Step 4: Simplify right side
    3,171.23x = 9,521,994.35
  5. Step 5: Solve for x
    x = 9,521,994.35/3,171.23
  6. Step 6: Final answer
    x = 3,002.62

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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.