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Finding the Fourth Proportional to 5,480.70, 8,221.86 and 2,017.68

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Solution

The fourth proportional to 5,480.70, 8,221.86 and 2,017.68 is: 3,026.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.70 : 8,221.86 = 2,017.68 : x
  2. Step 2: Convert to fraction form
    5,480.70/8,221.86 = 2,017.68/x
  3. Step 3: Cross multiply
    5,480.70x = 8,221.86 × 2,017.68
  4. Step 4: Simplify right side
    5,480.70x = 16,589,082.48
  5. Step 5: Solve for x
    x = 16,589,082.48/5,480.70
  6. Step 6: Final answer
    x = 3,026.82

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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.