Home / 3,958.77-5,459.49-3,399.06

Finding the Fourth Proportional to 3,958.77, 5,459.49 and 3,399.06

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Solution

The fourth proportional to 3,958.77, 5,459.49 and 3,399.06 is: 4,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.77 : 5,459.49 = 3,399.06 : x
  2. Step 2: Convert to fraction form
    3,958.77/5,459.49 = 3,399.06/x
  3. Step 3: Cross multiply
    3,958.77x = 5,459.49 × 3,399.06
  4. Step 4: Simplify right side
    3,958.77x = 18,557,134.08
  5. Step 5: Solve for x
    x = 18,557,134.08/3,958.77
  6. Step 6: Final answer
    x = 4,687.60

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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.