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Finding the Fourth Proportional to 3,881.88, 5,822.82 and 1,284.84

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Solution

The fourth proportional to 3,881.88, 5,822.82 and 1,284.84 is: 1,927.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.88 : 5,822.82 = 1,284.84 : x
  2. Step 2: Convert to fraction form
    3,881.88/5,822.82 = 1,284.84/x
  3. Step 3: Cross multiply
    3,881.88x = 5,822.82 × 1,284.84
  4. Step 4: Simplify right side
    3,881.88x = 7,481,392.05
  5. Step 5: Solve for x
    x = 7,481,392.05/3,881.88
  6. Step 6: Final answer
    x = 1,927.26

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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.