Home / 3,847.60-5,310.12-2,169.04

Finding the Fourth Proportional to 3,847.60, 5,310.12 and 2,169.04

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Solution

The fourth proportional to 3,847.60, 5,310.12 and 2,169.04 is: 2,993.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.60 : 5,310.12 = 2,169.04 : x
  2. Step 2: Convert to fraction form
    3,847.60/5,310.12 = 2,169.04/x
  3. Step 3: Cross multiply
    3,847.60x = 5,310.12 × 2,169.04
  4. Step 4: Simplify right side
    3,847.60x = 11,517,862.68
  5. Step 5: Solve for x
    x = 11,517,862.68/3,847.60
  6. Step 6: Final answer
    x = 2,993.52

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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.