Home / 3,179.69-4,388.15-1,763.55

Finding the Fourth Proportional to 3,179.69, 4,388.15 and 1,763.55

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Solution

The fourth proportional to 3,179.69, 4,388.15 and 1,763.55 is: 2,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.69 : 4,388.15 = 1,763.55 : x
  2. Step 2: Convert to fraction form
    3,179.69/4,388.15 = 1,763.55/x
  3. Step 3: Cross multiply
    3,179.69x = 4,388.15 × 1,763.55
  4. Step 4: Simplify right side
    3,179.69x = 7,738,721.93
  5. Step 5: Solve for x
    x = 7,738,721.93/3,179.69
  6. Step 6: Final answer
    x = 2,433.80

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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.