Home / 3,489.12-4,816.18-2,163.59

Finding the Fourth Proportional to 3,489.12, 4,816.18 and 2,163.59

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Solution

The fourth proportional to 3,489.12, 4,816.18 and 2,163.59 is: 2,986.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.12 : 4,816.18 = 2,163.59 : x
  2. Step 2: Convert to fraction form
    3,489.12/4,816.18 = 2,163.59/x
  3. Step 3: Cross multiply
    3,489.12x = 4,816.18 × 2,163.59
  4. Step 4: Simplify right side
    3,489.12x = 10,420,258.59
  5. Step 5: Solve for x
    x = 10,420,258.59/3,489.12
  6. Step 6: Final answer
    x = 2,986.50

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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.