Home / 3,181.32-4,768.74-1,720.08

Finding the Fourth Proportional to 3,181.32, 4,768.74 and 1,720.08

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Solution

The fourth proportional to 3,181.32, 4,768.74 and 1,720.08 is: 2,578.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.32 : 4,768.74 = 1,720.08 : x
  2. Step 2: Convert to fraction form
    3,181.32/4,768.74 = 1,720.08/x
  3. Step 3: Cross multiply
    3,181.32x = 4,768.74 × 1,720.08
  4. Step 4: Simplify right side
    3,181.32x = 8,202,614.30
  5. Step 5: Solve for x
    x = 8,202,614.30/3,181.32
  6. Step 6: Final answer
    x = 2,578.37

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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.