Home / 5,166.12-7,749.20-2,857.62

Finding the Fourth Proportional to 5,166.12, 7,749.20 and 2,857.62

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Solution

The fourth proportional to 5,166.12, 7,749.20 and 2,857.62 is: 4,286.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.12 : 7,749.20 = 2,857.62 : x
  2. Step 2: Convert to fraction form
    5,166.12/7,749.20 = 2,857.62/x
  3. Step 3: Cross multiply
    5,166.12x = 7,749.20 × 2,857.62
  4. Step 4: Simplify right side
    5,166.12x = 22,144,268.90
  5. Step 5: Solve for x
    x = 22,144,268.90/5,166.12
  6. Step 6: Final answer
    x = 4,286.44

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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.