Home / 3,180.17-4,388.90-1,764.30

Finding the Fourth Proportional to 3,180.17, 4,388.90 and 1,764.30

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Solution

The fourth proportional to 3,180.17, 4,388.90 and 1,764.30 is: 2,434.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.17 : 4,388.90 = 1,764.30 : x
  2. Step 2: Convert to fraction form
    3,180.17/4,388.90 = 1,764.30/x
  3. Step 3: Cross multiply
    3,180.17x = 4,388.90 × 1,764.30
  4. Step 4: Simplify right side
    3,180.17x = 7,743,336.27
  5. Step 5: Solve for x
    x = 7,743,336.27/3,180.17
  6. Step 6: Final answer
    x = 2,434.88

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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.