Home / 3,750.50-5,175.69-2,179.55

Finding the Fourth Proportional to 3,750.50, 5,175.69 and 2,179.55

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Solution

The fourth proportional to 3,750.50, 5,175.69 and 2,179.55 is: 3,007.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,750.50 : 5,175.69 = 2,179.55 : x
  2. Step 2: Convert to fraction form
    3,750.50/5,175.69 = 2,179.55/x
  3. Step 3: Cross multiply
    3,750.50x = 5,175.69 × 2,179.55
  4. Step 4: Simplify right side
    3,750.50x = 11,280,675.14
  5. Step 5: Solve for x
    x = 11,280,675.14/3,750.50
  6. Step 6: Final answer
    x = 3,007.78

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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.