Home / 3,829.09-5,283.85-2,149.96

Finding the Fourth Proportional to 3,829.09, 5,283.85 and 2,149.96

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Solution

The fourth proportional to 3,829.09, 5,283.85 and 2,149.96 is: 2,966.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,829.09 : 5,283.85 = 2,149.96 : x
  2. Step 2: Convert to fraction form
    3,829.09/5,283.85 = 2,149.96/x
  3. Step 3: Cross multiply
    3,829.09x = 5,283.85 × 2,149.96
  4. Step 4: Simplify right side
    3,829.09x = 11,360,066.15
  5. Step 5: Solve for x
    x = 11,360,066.15/3,829.09
  6. Step 6: Final answer
    x = 2,966.78

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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.