Home / 3,958.84-5,459.58-3,399.13

Finding the Fourth Proportional to 3,958.84, 5,459.58 and 3,399.13

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Solution

The fourth proportional to 3,958.84, 5,459.58 and 3,399.13 is: 4,687.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.84 : 5,459.58 = 3,399.13 : x
  2. Step 2: Convert to fraction form
    3,958.84/5,459.58 = 3,399.13/x
  3. Step 3: Cross multiply
    3,958.84x = 5,459.58 × 3,399.13
  4. Step 4: Simplify right side
    3,958.84x = 18,557,822.17
  5. Step 5: Solve for x
    x = 18,557,822.17/3,958.84
  6. Step 6: Final answer
    x = 4,687.69

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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.