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Finding the Fourth Proportional to 2,284.80, 3,427.02 and 641.22

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Solution

The fourth proportional to 2,284.80, 3,427.02 and 641.22 is: 961.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.80 : 3,427.02 = 641.22 : x
  2. Step 2: Convert to fraction form
    2,284.80/3,427.02 = 641.22/x
  3. Step 3: Cross multiply
    2,284.80x = 3,427.02 × 641.22
  4. Step 4: Simplify right side
    2,284.80x = 2,197,473.76
  5. Step 5: Solve for x
    x = 2,197,473.76/2,284.80
  6. Step 6: Final answer
    x = 961.78

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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.