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Finding the Fourth Proportional to 5,517.84, 8,284.98 and 5,419.44

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Solution

The fourth proportional to 5,517.84, 8,284.98 and 5,419.44 is: 8,137.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.84 : 8,284.98 = 5,419.44 : x
  2. Step 2: Convert to fraction form
    5,517.84/8,284.98 = 5,419.44/x
  3. Step 3: Cross multiply
    5,517.84x = 8,284.98 × 5,419.44
  4. Step 4: Simplify right side
    5,517.84x = 44,899,952.01
  5. Step 5: Solve for x
    x = 44,899,952.01/5,517.84
  6. Step 6: Final answer
    x = 8,137.23

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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.