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Finding the Fourth Proportional to 5,503.85, 8,255.49 and 1,805.59

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Solution

The fourth proportional to 5,503.85, 8,255.49 and 1,805.59 is: 2,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,503.85 : 8,255.49 = 1,805.59 : x
  2. Step 2: Convert to fraction form
    5,503.85/8,255.49 = 1,805.59/x
  3. Step 3: Cross multiply
    5,503.85x = 8,255.49 × 1,805.59
  4. Step 4: Simplify right side
    5,503.85x = 14,906,033.74
  5. Step 5: Solve for x
    x = 14,906,033.74/5,503.85
  6. Step 6: Final answer
    x = 2,708.29

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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.