Home / 3,441.20-4,748.88-1,949.12

Finding the Fourth Proportional to 3,441.20, 4,748.88 and 1,949.12

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Solution

The fourth proportional to 3,441.20, 4,748.88 and 1,949.12 is: 2,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,441.20 : 4,748.88 = 1,949.12 : x
  2. Step 2: Convert to fraction form
    3,441.20/4,748.88 = 1,949.12/x
  3. Step 3: Cross multiply
    3,441.20x = 4,748.88 × 1,949.12
  4. Step 4: Simplify right side
    3,441.20x = 9,256,136.99
  5. Step 5: Solve for x
    x = 9,256,136.99/3,441.20
  6. Step 6: Final answer
    x = 2,689.80

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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.