Home / 5,199.75-7,175.78-2,841.90

Finding the Fourth Proportional to 5,199.75, 7,175.78 and 2,841.90

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Solution

The fourth proportional to 5,199.75, 7,175.78 and 2,841.90 is: 3,921.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.75 : 7,175.78 = 2,841.90 : x
  2. Step 2: Convert to fraction form
    5,199.75/7,175.78 = 2,841.90/x
  3. Step 3: Cross multiply
    5,199.75x = 7,175.78 × 2,841.90
  4. Step 4: Simplify right side
    5,199.75x = 20,392,834.97
  5. Step 5: Solve for x
    x = 20,392,834.97/5,199.75
  6. Step 6: Final answer
    x = 3,921.89

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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.