Home / 3,228.98-4,455.40-2,168.29

Finding the Fourth Proportional to 3,228.98, 4,455.40 and 2,168.29

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Solution

The fourth proportional to 3,228.98, 4,455.40 and 2,168.29 is: 2,991.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.98 : 4,455.40 = 2,168.29 : x
  2. Step 2: Convert to fraction form
    3,228.98/4,455.40 = 2,168.29/x
  3. Step 3: Cross multiply
    3,228.98x = 4,455.40 × 2,168.29
  4. Step 4: Simplify right side
    3,228.98x = 9,660,599.27
  5. Step 5: Solve for x
    x = 9,660,599.27/3,228.98
  6. Step 6: Final answer
    x = 2,991.84

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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.