Home / 5,480.40-8,215.20-2,704.80

Finding the Fourth Proportional to 5,480.40, 8,215.20 and 2,704.80

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Solution

The fourth proportional to 5,480.40, 8,215.20 and 2,704.80 is: 4,054.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.40 : 8,215.20 = 2,704.80 : x
  2. Step 2: Convert to fraction form
    5,480.40/8,215.20 = 2,704.80/x
  3. Step 3: Cross multiply
    5,480.40x = 8,215.20 × 2,704.80
  4. Step 4: Simplify right side
    5,480.40x = 22,220,472.96
  5. Step 5: Solve for x
    x = 22,220,472.96/5,480.40
  6. Step 6: Final answer
    x = 4,054.53

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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.