Home / 3,180.35-4,388.90-1,764.17

Finding the Fourth Proportional to 3,180.35, 4,388.90 and 1,764.17

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Solution

The fourth proportional to 3,180.35, 4,388.90 and 1,764.17 is: 2,434.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.35 : 4,388.90 = 1,764.17 : x
  2. Step 2: Convert to fraction form
    3,180.35/4,388.90 = 1,764.17/x
  3. Step 3: Cross multiply
    3,180.35x = 4,388.90 × 1,764.17
  4. Step 4: Simplify right side
    3,180.35x = 7,742,745.92
  5. Step 5: Solve for x
    x = 7,742,745.92/3,180.35
  6. Step 6: Final answer
    x = 2,434.56

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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.