Home / 3,829.12-5,284.20-2,173.12

Finding the Fourth Proportional to 3,829.12, 5,284.20 and 2,173.12

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Solution

The fourth proportional to 3,829.12, 5,284.20 and 2,173.12 is: 2,998.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,829.12 : 5,284.20 = 2,173.12 : x
  2. Step 2: Convert to fraction form
    3,829.12/5,284.20 = 2,173.12/x
  3. Step 3: Cross multiply
    3,829.12x = 5,284.20 × 2,173.12
  4. Step 4: Simplify right side
    3,829.12x = 11,483,200.70
  5. Step 5: Solve for x
    x = 11,483,200.70/3,829.12
  6. Step 6: Final answer
    x = 2,998.91

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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.