Home / 3,682.20-5,521.40-1,084.80

Finding the Fourth Proportional to 3,682.20, 5,521.40 and 1,084.80

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Solution

The fourth proportional to 3,682.20, 5,521.40 and 1,084.80 is: 1,626.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,682.20 : 5,521.40 = 1,084.80 : x
  2. Step 2: Convert to fraction form
    3,682.20/5,521.40 = 1,084.80/x
  3. Step 3: Cross multiply
    3,682.20x = 5,521.40 × 1,084.80
  4. Step 4: Simplify right side
    3,682.20x = 5,989,614.72
  5. Step 5: Solve for x
    x = 5,989,614.72/3,682.20
  6. Step 6: Final answer
    x = 1,626.64

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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.