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Finding the Fourth Proportional to 2,214.60, 3,322.80 and 754.17

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Solution

The fourth proportional to 2,214.60, 3,322.80 and 754.17 is: 1,131.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.60 : 3,322.80 = 754.17 : x
  2. Step 2: Convert to fraction form
    2,214.60/3,322.80 = 754.17/x
  3. Step 3: Cross multiply
    2,214.60x = 3,322.80 × 754.17
  4. Step 4: Simplify right side
    2,214.60x = 2,505,956.08
  5. Step 5: Solve for x
    x = 2,505,956.08/2,214.60
  6. Step 6: Final answer
    x = 1,131.56

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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.