Home / 3,449.04-4,758.12-2,122.80

Finding the Fourth Proportional to 3,449.04, 4,758.12 and 2,122.80

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Solution

The fourth proportional to 3,449.04, 4,758.12 and 2,122.80 is: 2,928.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.04 : 4,758.12 = 2,122.80 : x
  2. Step 2: Convert to fraction form
    3,449.04/4,758.12 = 2,122.80/x
  3. Step 3: Cross multiply
    3,449.04x = 4,758.12 × 2,122.80
  4. Step 4: Simplify right side
    3,449.04x = 10,100,537.14
  5. Step 5: Solve for x
    x = 10,100,537.14/3,449.04
  6. Step 6: Final answer
    x = 2,928.51

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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.