Home / 3,679.80-5,515.48-1,832.20

Finding the Fourth Proportional to 3,679.80, 5,515.48 and 1,832.20

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Solution

The fourth proportional to 3,679.80, 5,515.48 and 1,832.20 is: 2,746.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.80 : 5,515.48 = 1,832.20 : x
  2. Step 2: Convert to fraction form
    3,679.80/5,515.48 = 1,832.20/x
  3. Step 3: Cross multiply
    3,679.80x = 5,515.48 × 1,832.20
  4. Step 4: Simplify right side
    3,679.80x = 10,105,462.46
  5. Step 5: Solve for x
    x = 10,105,462.46/3,679.80
  6. Step 6: Final answer
    x = 2,746.20

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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.