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Finding the Fourth Proportional to 2,524.50, 3,786.75 and 880.61

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Solution

The fourth proportional to 2,524.50, 3,786.75 and 880.61 is: 1,320.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,524.50 : 3,786.75 = 880.61 : x
  2. Step 2: Convert to fraction form
    2,524.50/3,786.75 = 880.61/x
  3. Step 3: Cross multiply
    2,524.50x = 3,786.75 × 880.61
  4. Step 4: Simplify right side
    2,524.50x = 3,334,630.98
  5. Step 5: Solve for x
    x = 3,334,630.98/2,524.50
  6. Step 6: Final answer
    x = 1,320.91

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Half scale
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Double scale
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Similar ratio
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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.