Home / 3,394.10-5,086.67-1,639.64

Finding the Fourth Proportional to 3,394.10, 5,086.67 and 1,639.64

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Solution

The fourth proportional to 3,394.10, 5,086.67 and 1,639.64 is: 2,457.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394.10 : 5,086.67 = 1,639.64 : x
  2. Step 2: Convert to fraction form
    3,394.10/5,086.67 = 1,639.64/x
  3. Step 3: Cross multiply
    3,394.10x = 5,086.67 × 1,639.64
  4. Step 4: Simplify right side
    3,394.10x = 8,340,273.97
  5. Step 5: Solve for x
    x = 8,340,273.97/3,394.10
  6. Step 6: Final answer
    x = 2,457.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.