Home / 3,664.97-5,057.65-1,986.38

Finding the Fourth Proportional to 3,664.97, 5,057.65 and 1,986.38

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Solution

The fourth proportional to 3,664.97, 5,057.65 and 1,986.38 is: 2,741.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664.97 : 5,057.65 = 1,986.38 : x
  2. Step 2: Convert to fraction form
    3,664.97/5,057.65 = 1,986.38/x
  3. Step 3: Cross multiply
    3,664.97x = 5,057.65 × 1,986.38
  4. Step 4: Simplify right side
    3,664.97x = 10,046,414.81
  5. Step 5: Solve for x
    x = 10,046,414.81/3,664.97
  6. Step 6: Final answer
    x = 2,741.20

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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.