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Finding the Fourth Proportional to 5,453.75, 8,180.90 and 1,755.70

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Solution

The fourth proportional to 5,453.75, 8,180.90 and 1,755.70 is: 2,633.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.75 : 8,180.90 = 1,755.70 : x
  2. Step 2: Convert to fraction form
    5,453.75/8,180.90 = 1,755.70/x
  3. Step 3: Cross multiply
    5,453.75x = 8,180.90 × 1,755.70
  4. Step 4: Simplify right side
    5,453.75x = 14,363,206.13
  5. Step 5: Solve for x
    x = 14,363,206.13/5,453.75
  6. Step 6: Final answer
    x = 2,633.64

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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.