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Finding the Fourth Proportional to 5,651.80, 7,799.44 and 3,167.80

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Solution

The fourth proportional to 5,651.80, 7,799.44 and 3,167.80 is: 4,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,651.80 : 7,799.44 = 3,167.80 : x
  2. Step 2: Convert to fraction form
    5,651.80/7,799.44 = 3,167.80/x
  3. Step 3: Cross multiply
    5,651.80x = 7,799.44 × 3,167.80
  4. Step 4: Simplify right side
    5,651.80x = 24,707,066.03
  5. Step 5: Solve for x
    x = 24,707,066.03/5,651.80
  6. Step 6: Final answer
    x = 4,371.54

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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.