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Finding the Fourth Proportional to 1,682.68, 2,522.60 and 804.70

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Solution

The fourth proportional to 1,682.68, 2,522.60 and 804.70 is: 1,206.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.68 : 2,522.60 = 804.70 : x
  2. Step 2: Convert to fraction form
    1,682.68/2,522.60 = 804.70/x
  3. Step 3: Cross multiply
    1,682.68x = 2,522.60 × 804.70
  4. Step 4: Simplify right side
    1,682.68x = 2,029,936.22
  5. Step 5: Solve for x
    x = 2,029,936.22/1,682.68
  6. Step 6: Final answer
    x = 1,206.37

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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.