Home / 3,179.85-4,387.98-1,763.49

Finding the Fourth Proportional to 3,179.85, 4,387.98 and 1,763.49

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Solution

The fourth proportional to 3,179.85, 4,387.98 and 1,763.49 is: 2,433.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.85 : 4,387.98 = 1,763.49 : x
  2. Step 2: Convert to fraction form
    3,179.85/4,387.98 = 1,763.49/x
  3. Step 3: Cross multiply
    3,179.85x = 4,387.98 × 1,763.49
  4. Step 4: Simplify right side
    3,179.85x = 7,738,136.91
  5. Step 5: Solve for x
    x = 7,738,136.91/3,179.85
  6. Step 6: Final answer
    x = 2,433.49

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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.