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Finding the Fourth Proportional to 3,241.28, 4,473.09 and 1,914.98

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Solution

The fourth proportional to 3,241.28, 4,473.09 and 1,914.98 is: 2,642.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,241.28 : 4,473.09 = 1,914.98 : x
  2. Step 2: Convert to fraction form
    3,241.28/4,473.09 = 1,914.98/x
  3. Step 3: Cross multiply
    3,241.28x = 4,473.09 × 1,914.98
  4. Step 4: Simplify right side
    3,241.28x = 8,565,855.52
  5. Step 5: Solve for x
    x = 8,565,855.52/3,241.28
  6. Step 6: Final answer
    x = 2,642.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.