Home / 4,145.22-6,219.54-1,679.41

Finding the Fourth Proportional to 4,145.22, 6,219.54 and 1,679.41

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Solution

The fourth proportional to 4,145.22, 6,219.54 and 1,679.41 is: 2,519.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.22 : 6,219.54 = 1,679.41 : x
  2. Step 2: Convert to fraction form
    4,145.22/6,219.54 = 1,679.41/x
  3. Step 3: Cross multiply
    4,145.22x = 6,219.54 × 1,679.41
  4. Step 4: Simplify right side
    4,145.22x = 10,445,157.67
  5. Step 5: Solve for x
    x = 10,445,157.67/4,145.22
  6. Step 6: Final answer
    x = 2,519.81

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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.