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Finding the Fourth Proportional to 5,512.87, 8,269.12 and 1,352.89

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Solution

The fourth proportional to 5,512.87, 8,269.12 and 1,352.89 is: 2,029.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,512.87 : 8,269.12 = 1,352.89 : x
  2. Step 2: Convert to fraction form
    5,512.87/8,269.12 = 1,352.89/x
  3. Step 3: Cross multiply
    5,512.87x = 8,269.12 × 1,352.89
  4. Step 4: Simplify right side
    5,512.87x = 11,187,209.76
  5. Step 5: Solve for x
    x = 11,187,209.76/5,512.87
  6. Step 6: Final answer
    x = 2,029.29

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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.