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Finding the Fourth Proportional to 5,451.50, 7,520.42 and 3,563.70

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Solution

The fourth proportional to 5,451.50, 7,520.42 and 3,563.70 is: 4,916.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.50 : 7,520.42 = 3,563.70 : x
  2. Step 2: Convert to fraction form
    5,451.50/7,520.42 = 3,563.70/x
  3. Step 3: Cross multiply
    5,451.50x = 7,520.42 × 3,563.70
  4. Step 4: Simplify right side
    5,451.50x = 26,800,520.75
  5. Step 5: Solve for x
    x = 26,800,520.75/5,451.50
  6. Step 6: Final answer
    x = 4,916.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.