Home / 3,679.46-5,520.60-1,214.22

Finding the Fourth Proportional to 3,679.46, 5,520.60 and 1,214.22

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Solution

The fourth proportional to 3,679.46, 5,520.60 and 1,214.22 is: 1,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.46 : 5,520.60 = 1,214.22 : x
  2. Step 2: Convert to fraction form
    3,679.46/5,520.60 = 1,214.22/x
  3. Step 3: Cross multiply
    3,679.46x = 5,520.60 × 1,214.22
  4. Step 4: Simplify right side
    3,679.46x = 6,703,222.93
  5. Step 5: Solve for x
    x = 6,703,222.93/3,679.46
  6. Step 6: Final answer
    x = 1,821.80

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1.5x scale

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.