Home / 7,074.28-10,613.55-2,855.37

Finding the Fourth Proportional to 7,074.28, 10,613.55 and 2,855.37

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Solution

The fourth proportional to 7,074.28, 10,613.55 and 2,855.37 is: 4,283.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.28 : 10,613.55 = 2,855.37 : x
  2. Step 2: Convert to fraction form
    7,074.28/10,613.55 = 2,855.37/x
  3. Step 3: Cross multiply
    7,074.28x = 10,613.55 × 2,855.37
  4. Step 4: Simplify right side
    7,074.28x = 30,305,552.06
  5. Step 5: Solve for x
    x = 30,305,552.06/7,074.28
  6. Step 6: Final answer
    x = 4,283.90

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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.