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Finding the Fourth Proportional to 2,884.75, 4,327.80 and 936.96

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Solution

The fourth proportional to 2,884.75, 4,327.80 and 936.96 is: 1,405.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.75 : 4,327.80 = 936.96 : x
  2. Step 2: Convert to fraction form
    2,884.75/4,327.80 = 936.96/x
  3. Step 3: Cross multiply
    2,884.75x = 4,327.80 × 936.96
  4. Step 4: Simplify right side
    2,884.75x = 4,054,975.49
  5. Step 5: Solve for x
    x = 4,054,975.49/2,884.75
  6. Step 6: Final answer
    x = 1,405.66

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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.